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CD receiver

66 Reviews

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Item #: 158GT56UI

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Our take on the Sony CDX-GT56UI

Sony's CDX-GT56UI CD receiver offers a front-panel USB input for iPod® connection and control, along with great sound and some pretty sophisticated audio controls.

Sony's CDX-GT56UI CD receiver offers a front-panel USB input for iPod® connection and control, along with great sound and some pretty sophisticated audio controls.

Take charge of your iPod
You'll appreciate this receiver's ability to control your iPod in the car. The Quick BrowZer feature lets you search for a song by genre, artist, or album with a couple of quick flicks of the control knob. The Jump control leaps through your songs in 10% increments, while Zappin' plays short clips of your music files until you hear the song that suits your mood.

Audio controls to customize your sound
Sony's Advanced Sound Engine provides excellent dynamic range and fidelity, and throws in some extra features. A 7-band equalizer gives you lots of options for adjusting the sound to match your car. Automatic Level Optimizer continually balances the output of your sources so you don't have to keep a hand glued to the volume knob. Sony's DM+ Advanced circuitry restores the details that are lost when you compress your digital music, so you enjoy the best possible sound from your MP3, WMA, or AAC files. And you'll be able to dial in a stronger stereo image with the Listening Position time alignment feature.

Want a little more kick?
When you're ready to expand your system you'll find a set of preamp outputs for adding an external amplifier or a powered subwoofer. You can use the built-in high- and low-pass filters to trim the signal going to your speakers and subs so you get maximum efficiency from your system.

Want to keep your car's steering wheel audio controls?
In most vehicles, you can use an adapter to connect your vehicle's steering wheel controls to this Sony stereo. Connect a few wires, then program the adapter for your particular car and the Sony, and you'll retain the convenience of your steering wheel controls.

Note: If you're going to use your iPod with this receiver, be sure to check "Details" for specific iPod model compatibility with this receiver.

easy to install

Anonymous, shreveport,la

Featured Video:

What's in the Box:

  • AM/FM CD receiver (with 10-amp fuse inserted into chassis)
  • Face
  • Sleeve (installed)
  • Trim ring (installed)
  • Wiring harness
  • Remote control (RM-X211)
  • CR2025 Lithium battery (installed in remote)
  • 2 Radio removal tools
  • 4 Flathead ISO-mount screws
  • Face-fixing screw
  • Operating Instructions (Eng/Fre)
  • Installation/Connections sheet (Eng/Fre)
  • US Limited Warranty sheet
  • Canada Consumer 1 Year Warranty
  • Face fixing screw note

Product Highlights:

    General features:
    • CD receiver with AM/FM tuner
    • built-in amplifier (17 watts RMS CEA-2006/52 peak x 4 channels)
    • detachable face with black and white LCD display
    • red key illumination
    • built-in RDS (Radio Data System)
    • remote control
    Audio features:
    • plays CDs and USB devices (see Hands-on Research for full capabilities)
    • EQ7 7-band equalizer, Listener Position calibration, DM+ advanced sound restoration, Rear Bass Enhancer, and Dynamic Loudness
    • 24-bit digital-to-analog converter
    • adjustable high- and low-pass filters
    • iPod direct control via USB input — no adapter necessary, but adding an optional connecting cable lets you leave your iPod cable at home
    • compatible with satellite radio tuner (not included) — subscription required
    • inputs: front-panel auxiliary and USB inputs
    • outputs: 2-channel preamp outputs (2-volt rear/sub)
    Other features and specs:

    Sony CDX-GT56UI

    Average Customer Review(s):

    (66 Reviews)

    Good Sound - Basic

    Jamie from Tucson, AZ on 10/24/2013

    2004 Dodge Neon
    Crutchfield Customer Review (What's this?)

    Overall, a good, basic unit. Great sound, seems to be durable, easy to install. The only downside is the ergonomics of the unit... but will give Sony somewhat of a pass as most of the other manufacturers seem tohave similar designs. I don't know why after-market sound decks are designed with such VERY SMALL controls, but they should remember that you are usually changing controls WHILE DRIVING - so maybe large, visible, easy to find controls might be more convenient for the user. In addition to very small controls, the volume does not turn the unit on/off, it takes you to the sound menu. The on/off button is actually the on the corner of the input control, so I often tend to switch to aux or CD when trying to turn off the unit. This is counter-intuitive, annoying, and takes some getting used to. I would prefer the on/off switch to be a push of the volume knob, like most other units I've had in the past.

    Pros: Good Sound, Durability

    Cons: Poor Ergonomics and design

    Sony CDX-GT56UI

    Anonymous from shreveport,la on 3/17/2013

    Crutchfield Customer Review (What's this?)

    easy to install



    Great radio

    Back in Colo from Loveland, Colorado on 3/11/2013

    1999 Nissan Sentra
    Crutchfield Customer Review (What's this?)

    great inexpensive radio. I bought this to replace my wife's defective Blaupunkt. It was an easy install and setup. The free harness from Crutchfield made the swap easy and if it didn't work, I could swap the old bad in in about 4 minutes. It took about 30-45 minutes to install, but I got the solder/heatshrink route. It takes a bit more time/effort to hold 2 wires and get a nice connection.

    Pros: -inexpensive -good sound quality -nice easy to read display

    Cons: -location of USB port (it is in the common location, but not a good one for people with a stick shift)

    Good Unit for my needs

    Anonymous from Easton PA on 3/11/2013

    2001 Jeep Grand Cherokee
    Crutchfield Customer Review (What's this?)

    I needed to replace the Infinity Gold head unit in my Jeep. This worked well once I discovered that the power antenna output needed to connect to the amp (had to find that answer via Google). The other issue I had installing it was the mounting kit I ordered with it. It would not fit through to use the DIN sleeve, and the screws with the unit were to short before the flair to thread in. That was solved by shaving a taper in the slot to allow for the flared head of the screw. Overall I love the unit and have better audio from my iPod then the cassette adapter I was using on the original head unit. I'd recommend this for any one needing an inexpensive unit to play an iPod in the car.


    Cons: should be a note regarding some amps needing the power from the power antenna out to trigger the amp on.

    Sony CDX-GT56UI

    Anonymous from Aurora Colorado on 3/6/2013

    Crutchfield Customer Review (What's this?)

    Great features and price, most of all the customer service was fantastic. I had a couple of questions with the install and setting options and the customer service guys were extremely helpful and happy to do so. Thank you!




    Ian from Newport News on 3/3/2013

    2003 Dodge Durango
    Crutchfield Customer Review (What's this?)

    Absolute great radio. Lots of features and easy to use. Sounds great as well.

    Pros: To many to list

    Cons: None

    good product

    rob from brentwood on 3/3/2013

    2006 Mazda Tribute
    Crutchfield Customer Review (What's this?)

    Nice simple easy to use.



    Good Radio for the money

    DeLaun from Norman, OK on 3/2/2013

    1996 Lincoln Town Car
    Crutchfield Customer Review (What's this?)

    It is a simple sony radio that does what you want it to do. To play the music off your ipod or mp3 player by USB or AUX. And play cds and listen to the radio. Just a great deal with all the things you get with it. Plus sounds great in a car with the normal speakers.

    Pros: The deal for 89.99. With the free installation gear. Is the best. Plus a radio that will cost you that alone.

    Cons: Unknown to start. cause I have only had it in my car for a week. but no problems for a simple radio under 100 dollars.

    sony in car cd player

    ED K from Wexford,pa on 2/28/2013

    Crutchfield Customer Review (What's this?)

    From the beginning I have fully enjoyed it

    Pros: none

    Cons: none

    Great deal

    Happy guy from Ferrysburg, MI on 2/19/2013

    1995 Mercury Grand Marquis
    Crutchfield Customer Review (What's this?)

    Very nice unit easy to install and sounds great

    Pros: Easy to install the programming is simple and easy to use.

    Cons: None

    Great radio - budget price

    RobbieH from Dallas, TX on 2/6/2013

    2001 Jeep Cherokee
    Crutchfield Customer Review (What's this?)

    I have had this radio for a few weeks. I've been impressed at how good it sounds and how easy it is to use, while still not costing a fortune. I really just needed a basic radio for my run-around second vehicle, but have gotten much more than expected. The iPhone integration works great, even with my iPhone 5. Although I prefer to use the phone itself to set up shuffle, navigating through music on the iPhone is easier on this radio than any other head unit I have used, including my $500 Sony in my main vehicle. Since this is a 2nd vehicle, I opted to try to keep the factory installed speakers. These speakers are now 11 years old, and the speakers in an XJ Cherokee (not Grand Cherokee) have never been known to be too great. The 5 band EQ and other features in the radio have allowed me to tune the system to get better sound out of those speakers than I ever thought possible, certainly good enough to leave it as-is for now, and possibly good enough to leave those factory units for good if I were to add a powered sub.

    Pros: Easy to use, and the features of the radio allow even factory speakers to sound good.

    Cons: It is a small con, but I do wish the radio would tie to the dimmer circuit.

    A great bargain on a fine stereo.

    Blind Hog from Alabaster, AL on 2/2/2013

    2003 Toyota Camry
    Crutchfield Customer Review (What's this?)

    This replaced the old car stereo in my 2003 Camry. I'm still using the factory speakers for now. It makes the most of them, sounds much more dynamic, and a lot better high frequencies that show up on plucking or tapping sounds. The DM+ function is really good. Being able to play MP3's is good -- I ripped one MP3 of an entire Michael Crichton novel and copied it to one disk. I'll be able to get a lot of music onto a small set of disks -- maybe even onto one thumbdrive. I recommend getting a micro thumb drive so that it doesn't stick far out of the dash. The menus are complicated, and some options don't show up depending on whether you are playing the tuner, or a CD, or whatnot. Seems to work better with the remote control. My speakers are powered by this unit. It was great to be able to use the low-pass to turn my rear speakers into sub (sort of) woofers, and the high pass to direct the high frequencies to my front speakers. I set it to use its DSP for the driver. Fantastic! I run the equalizer flat, but one day maybe I can run an audio analyzer and tweak those 7 bands to make up for the aubomobile, which is a pretty hostile environment for great stereo listening. The DSP does sound very processed to me -- but I like my music to have spaces where the spaces are supposed to be.

    Pros: A high-featured great stereo. Lots of features.

    Cons: Have to do a lot of fiddling with the menu to get to the features you are trying to set. To get to the attenuator (ATT) easily you have to use the remote.

    Sony CDX-GT56UI

    Shawn from Wenatchee ,WA on 1/23/2013

    2008 Ford F-150
    Crutchfield Customer Review (What's this?)

    Typical Sony head unit, great quality at a great price.

    Pros: ease of operation

    Cons: rotary volume knob ,prefer rocker style ..

    Great stereo, unreal for the price!

    Dave B. from New town, Pa. on 1/18/2013

    1997 Mazda Miata
    Crutchfield Customer Review (What's this?)

    Nice stereo, a lot of features, sounds so much better, even with old factory speakers.



    friggin love it

    Elijah G from Friendswood, TX on 1/16/2013

    1999 Toyota Tacoma
    Crutchfield Customer Review (What's this?)

    This is the first radio I've bought for a vehicle and so far its awesome. It does everything it said it would and the install was easy. Took all of 30 minutes. Overall great radio.



    Sony CDX-GT56UI

    Anonymous from Columbus, OH on 1/9/2013

    2003 Honda Accord LX
    Crutchfield Customer Review (What's this?)

    Really great reciever at an excellent price.

    Pros: Great price. Great sound. Really cool sound features. Much needed improvement to my old factory stereo.

    Cons: The volume/select knob is chrome and tend to reflect sun light back into the drivers eyes. It's not really a safety issue but is really annoying. Perhaps Sony could make that knob black or lose it altogether. Also the face does not come off easily. Once the detach button is pushed, it still takes a little force to remove it.

    Sony CDX-GT56UI

    Alana from MS on 1/3/2013

    2005 Dodge Ram 1500
    Crutchfield Customer Review (What's this?)

    Gave this to my husband as a Christmas gift. So far he's loving it. No complaints.



    "love it"

    jay31 from bloomfield,NM on 1/1/2013

    2004 Toyota Tacoma
    Crutchfield Customer Review (What's this?)

    i love it.. easy to install...great sound quality..

    Pros: awesome..

    Cons: none..

    Awesome Unit

    JimL from Herndon, VA on 12/30/2012

    2002 Honda Civic EX
    Crutchfield Customer Review (What's this?)

    I was looking for an inexpensive iPod ready unit to put in my son's 2002 Civic EX. This unit was a perfect fit and does everything and more. It has a great iPod interface, awesome power and sound, and safe detachable face. You can't beat it for under $100.

    Pros: Easy installation. Great Sound. Price.

    Cons: None that I see at this time!

    Excellent unit, excellent value

    CPS from Memphis, TN on 12/29/2012

    Crutchfield Customer Review (What's this?)

    Bought this for my daughter's Explorer for Christmas and thanks to the fantastic Crutchfield mounting kit & harness adapter (all included in the special they had running), had it installed and cranking out the tunes in under an hour. Everything went together perfectly, as always with car systems I've bought here. Honestly, will never buy anywhere else. This unit has a great selection of features, especially for such a low price. Happy to report that it works seamlessly with her iPhone 5 - outstanding! Highly recommend this product.

    Pros: Great feature set, easy to install, works with new iPhones

    Cons: Only negative I can think of is these new receivers have such tiny buttons for my eyes...

    Good Radio, Good Deal

    ThomD2053 from Augusta, GA on 12/20/2012

    2000 Toyota Camry
    Crutchfield Customer Review (What's this?)

    The radio is all I need and probably more than I wanted. My OEM in my 2000 had hiccups with the CD player, literally. The remote should prove good with my fat fingers and small buttons on the unit. I have also bought one for my mother in law so that will show the tale of the tape. That one is going in a 1986 MB 300E.

    Pros: The wiring harness was not as easy as it could have been but not that painful either. Ten wire nuts and it was done.

    Cons: I will have to see if I can get the trim ring on. I forgot it and now I will have to basically pull the radio out put it on and see if it will go back in with the dash trim. Instructions were not worth the effort.

    Great replacement radio!

    eps from New Haven, CT on 12/19/2012

    2005 Honda CRV EX
    Crutchfield Customer Review (What's this?)

    Bought this to replace my wife's OEM double din factory radio in her Honda CR-V. A really nice, inexpensive radio, fit perfectly, sounds great.

    Pros: - Can't beat the price - most brick and mortars had this for $30-40 more - sounds great - no complaints

    Cons: The controls are a little confusing at first - a lot of click and hold vs click on the buttons


    Scott from Lake Charles la on 12/17/2012

    1997 Acura 2.2CL
    Crutchfield Customer Review (What's this?)

    It's a Sony. That should sum it up



    Sony CDX-GT56UI

    MDA from Arlington, TX on 12/10/2012

    2003 Ford Explorer
    Crutchfield Customer Review (What's this?)

    Easy install and pretty easy controls considering today's technology.

    Pros: Simple to use. Remote. Easy installation.

    Cons: Red color lights.

    girlfriend lives her CD player

    Dave from Waterloo, IA on 12/5/2012

    1993 Cadillac DeVille
    Crutchfield Customer Review (What's this?)

    For the price it's a nice deck. Great features pretty ready to use. Super quick shipping and awesome that it came with the install gear.



    You get what you pay for and it works.

    Untitled from Portland Or on 12/2/2012

    Crutchfield Customer Review (What's this?)

    If you are looking for something to get the tunes running in your car on the cheap then this is the radio for you. If you are looking at serious the 6 programmable buttons are great for getting to your favorite stations. This isn't the flashiest radio and it does have its flaws, but if you want a cheap way to listen to serious it is a slick deal.

    Pros: The cost was the biggest pro for me. Being able to have a usb port and a audio port in the front is great for your mp3 players. SeriousXM + 6 programmable channels + Front USB & Audio + Cost = great alternative for that broken radio.

    Cons: The buttons to change stations on serious and the frequency for your fm stations are tiny. If you have big fingers like me then it will be hard to press those buttons without touching the source or mode buttons. When you first turn it on you get the message of failure. During the boot cycle the radio doesn't get the information in time and puts out the message of failure to the screen because the call command wasn't satisfied in time. Nothing impresses the ladies when the read failure.


    Terry from Moberly, MO on 11/29/2012

    2003 Dodge Ram 1500
    Crutchfield Customer Review (What's this?)

    I ordered this unit over Black Friday weekend, getting a free install kit and free 4 gig USB drive, all for 79.95. It arrived in 2 days via free shipping, as promised. Between the instructions provided with the unit, and the step-by-step guide from Crutchfield, I was able to install it myself in about an hour. It sounds much better that the factory system (2003 Dodge Ram Quad Cab Infinity CD/Cassette/AM/FM with 7 speakers) even using the same speakers. The USB & Line-In jack allow me to listen to my MP3's and my burned CD's play great. For the improvement in sound quality and ability to plug in my Android phone alone, this stereo was a steal!

    Pros: Great Sound, Easy to use, lots of features.

    Cons: I wish the display colors were changeable like on some more expensive stereos, but it's about the only thing I I can remotely find wrong with it.

    great item

    jusAmy from Colorado on 11/28/2012

    1994 Chevrolet C Series
    Crutchfield Customer Review (What's this?)

    this was easy to install, Crutchfield sends detailed DIY instructions comlete with pictures specific to your vehicle! Great Value



    Good product for the price

    Jeff from Champaign, il on 11/26/2012

    2003 Toyota Tundra
    Crutchfield Customer Review (What's this?)

    Great stereo for the money, Deffinately better than the stock stereo. I never had a stereo with the usb port. This is a real neat option if you have never had one. Overall Great product for the price.



    Great product

    Jim from Concord, NC on 11/25/2012

    2002 Ford Focus
    Crutchfield Customer Review (What's this?)

    I needed a replacement for a faulty factory unit in my '02 Focus. The Sony was very simple to install and operate even for someone like me who is not very tech savy. About all I could ask for with excellent sound and clean looks.

    Pros: ease of use

    Cons: none

    Sony CDX-GT56UI

    Ron from Houston, TX on 11/25/2012

    Crutchfield Customer Review (What's this?)

    I installed it as a stereo system in an RV camper trailer so four channel wasn't needed. I'm driving a pair of book shelf speakers. The sound is very very good. Since while we're camping I use the MP3/USB capabilities that was a choice driver. The automatic volume leveling is a great idea since I make up my own files from several sources and genres and the recorded volume levels are frequently different. I like the remote for the same reason; I can adjust the volume etc. without getting up. Also the sound restoration for MP3 files works well; not as good as a good CD on my home system but way better than any boom box I've ever heard.


    Cons: I wish they had left the rear connector un-assembled rather that using having pig tails of wire pre connected to the pins. It would have made a neater installation. Not a big deal unless you're a bit OCD...

    Read the reviews

    crvradiodown from Raleigh NC on 11/8/2012

    2002 Honda CRV EX
    Crutchfield Customer Review (What's this?)

    I spent a lot of time researching stereos to replace a 2002 CRV factory 6 CD changer that finally died and came across this. All the reviews were great and very thorough. Knowing I would get the single DIN adapter kit, the wiring harness adapter (WHA) and great customer support from Crutchfield, is what sold me. I love my music, but I only have factory speakers cuz I'm cheap, so I just needed something I could hear my music on thumbdrive, ipod touch 4, or CD for under $100. I ordered all of it, & some Connect It wire connectors. Since I read the reviews, I was prepared to have to do some alteration to the adapter kit by cutting off tabs (for mine, it was to get rid of almost everything), so between pliers, a utility knife, and file, I got everything cut up & assembled within an hour. I'm from old school where we had to hard-wire the stereo into the car (13 years ago was the last time I did this), so the WHA was a godsend. Made sure all the wires matched the function diagram (mine were actually all the right colors), used the wire connectors to connect the WHA to the harness from the radio, and plugged everything in, mounted it to the dashboard, and turned it on. It sounds great, and I can use my ipod with it, as well as CDs and thumbdrive. The only negative is that for those of us who haven't had any cool tech toys in a while, it will take dragging out your degree to understand all the intricacies of finding your music, programming stations, etc. Worth it tho! Sounds great!

    Pros: With Crutchfield wiring harness adapter, adapter kit, and great instructions, self-install went great! Sounds wonderful! Exceeded expectations for a basic, cheap stereo.

    Cons: Hard to nagivate or understand all the controls (no straightforward "play", "next song", "next album" sort of directions.

    Not Bad for the Price

    Willie from SF Bay Area on 11/8/2012

    2005 Honda Civic
    Crutchfield Customer Review (What's this?)

    I've had this stereo for a couple of weeks. I got it to replace a 7 year old aftermarket stereo that had lost the connection between the faceplate and the body. I'm hoping that the detachable faceplate on this one won't be a problem. Installation was relatively easy in my 2005 Honda Civic. Soldering the wiring harness was a bit difficult because the wires on the plug that go to the receiver were thin and it was difficult to see the stripe on the wire on the darker colors. A magnifier didn't help. This stereo cost about half what the 7 year old stereo it replaced cost. The specs were the same. Performance is comparable. I love electronics for that reason. Until it reaches some kind of theoretical floor, the price for comparable performance always declines over time. The power is adequate for my car. I like having the 7 band equalizer with quasi-parametric features although I haven't had the time to tweak it yet. I love the USB input. I realize it's now standard on receivers in this price range. but I still like it. Another feature that I really like is the gain control on the Aux input. It makes things much simpler. Two problems: FM reception. The 8 dBF sensitivity rating was one reason I chose this unit. FM does not come in as well as it did on the previous one which wasn't as good as the OEM unit. The display isn't bright enough to be readable in daylight.

    Pros: USB input. Gain control on Aux input. Equalizer.

    Cons: FM reception. Display brightness

    Great radio... great price

    JoeyW from Fitzgerald, GA on 11/7/2012

    2002 Ford Escape
    Crutchfield Customer Review (What's this?)

    Just bought the Sony CDX-GT56UI for my wife's Ford Escape. The sound is so much better even with the stock speakers, the radio reception is alot better than the stock radio, and it went in super easy. Using the crutchfield supplied install gear I was able to have the radio in and listening to music and playing with the features in about 35 minutes (with soldering the connections and using heat shrink to protect them). Money well spent!!! Now new speakers are on the to-do list.

    Pros: Front USB port, Remote control, Great sound, Easy to adjust


    Excellent bang for the $$$$$$ !!!

    sharptapp from NC on 11/7/2012

    2000 Toyota Camry
    Crutchfield Customer Review (What's this?)

    I've bought from Crutchfield before (several years ago).... still the same excent service, price & quality of merchandise.

    Pros: easy install ... great improvement over factory system even with original OEM speakers. (next buy!) User interface is good. (you can drive and switch functions with minimal distraction) Black and white display is very readable in sunlight. Usb input is a requirement on anything I buy now, so it's a given plus.

    Cons: Remote only works if you point it directly at the unit... realy only usefull for back seat passenger. (Could get you slapped! ... my rule: you drive, you control sound system.)

    Sony CDX-GT56Ui

    pat from Charleston,S.C. on 11/6/2012

    Crutchfield Customer Review (What's this?)

    I needed a new player to replace my unit in my astro van. The factory radio I had sounded like something in a 1962 Impala. The price was great and made to Sony specs. I also have trouble with the size of the buttons, but getting used to it. I got new speakers to go along with it, but still can't get the right sound yet. Still adjusting. Not enough bass. Overall ,not a bad unit for the money



    Sony CDX-GT56UI

    Jim from Sully,Ia on 11/2/2012

    1993 Chevrolet K Series
    Crutchfield Customer Review (What's this?)

    For the price it is a great radio. Alot of great features.



    Sony CDX-GT56UI

    Dave I from Ohio on 10/27/2012

    2003 Dodge Ram 1500
    Crutchfield Customer Review (What's this?)

    As always, I found this install to be easy especially with Crutchfields' install guide. The stereo was everything I expected it to be and at a very reasonble price. All of the adapter kits were right on for a flawless install. I will always recommend Crutchfield as the best place to buy your electronic needs and always helpful every step of the way! I don't even shop anywhere else.



    Sony CDX-GT56UI

    Warren from Palmyra, VA on 10/22/2012

    1992 Ford Club Wagon
    Crutchfield Customer Review (What's this?)

    This is the 3rd Sony receiver I have purchased and am happy with all three. My suggestion for improvement would be to have an "off" button. The "source" button selects the source (CD, USB, tuner, etc) and also cuts the device off. If you push it quickly it advances to the next source, if you push and hold a little longer, it turns the receiver off, but leaves the time showing, if you hold it longer, it turns everything off, no clock. The problem with this is that it's easy to mis-push. For example, if I want to turn it off to take a phone call, it's easy to advance from CD to USB, because I didn't push hold the button just the right amount of time. One of my other Sony receivers has a specified "off" switch. This receiver would benefit greatly from that addition. My other complaint is that when I added this item to my cart, I was prompted with "To install this item, you need the following special part: PAC SOEM-4 Universal Interface Universal 4-channel line output converter." So I purchased this device. Despite the warnings that professional installation may be necessary for our old van (92 Ford), it installed easily. However it did not work. When calling tech support, we were informed that we should disconnect the PAC SOEM-4. We did and it worked perfectly. Time and money wasted. Update: to my surprise I got an email from Crutchfield Customer Service and a refund for the price of the Universal Interface. I had not requested the refund, but Customer Service had obviously read my review and responded within a couple of days. That is awesome service.

    Pros: Good quality at an affordable price.

    Cons: Needs an "off" button.

    Sony CDX-GT56UI

    Johns from Saipan on 10/18/2012

    Crutchfield Customer Review (What's this?)

    For me the buttons are very small and bundled too close together. Difficult to make selections while driving. Having trouble adjusing sound, seems the base (sound) is missing. I may need speakers, that's my next order. The number of selectioins is excellant for the low cost of the unit. The Chrysler kit was exceptional, easy to use, no trouble at all.. I was impressed receiving the unit so soon after ordering it! If new speakers increase the sound quality I wii be much happier.



    Sony CDX-GT56UI

    Jim G. from Mount Vernon, OH on 10/15/2012

    1997 Buick Century
    Crutchfield Customer Review (What's this?)

    I can't believe that you can get this much radio for under $100.00.



    Just what I was looking for.

    KamranD from Blacklich, OH on 10/7/2012

    2007 Subaru Impreza 2.5i
    Crutchfield Customer Review (What's this?)

    Looks good, sounds good and is very versitile

    Pros: USB and audio in front jacks

    Cons: Cant change light colors

    daughter's new car stereo

    chef from beaverton oregon on 10/6/2012

    1998 Toyota Corolla
    Crutchfield Customer Review (What's this?)

    the install took about 20 minutes. The soldering and shrink wrapping of the adapter took a little while longer but it is the best way to do things.It works much better than crimp connections.



    Working fine in 91 Lexus LS400

    David from Santa Barbara, CA on 10/1/2012

    Crutchfield Customer Review (What's this?)

    Unit is working very well. No issues to date. I like the fact that there are individual buttons that are associated with station presets. The USB connector on the front is great for flashh drive use.

    Pros: Documentation is well done to ease the installation.

    Cons: Can't think of any.


    Anonymous from Des Moines, IA on 9/18/2012

    2001 Ford Ranger
    Crutchfield Customer Review (What's this?)

    I had installed a similar Sony receiver in my last car and wanted to have the same thing in my new truck, but this thing is actually full of design improvements. The QuickBrowzer work backwards out of the USB folders instead of in from the directory top. The low-pass filter turns my rear speakers into subwoofers, the position choice and adjustment features allow ear-arrival customization, and the digital enhancer does whatever awesome sound-enhancing thing it does - all electronically! And it was easy to install! And it looks cool! And it was cheap! Buy it!

    Pros: Everything

    Cons: Nothing

    Miata wiring harness problems

    Mike from Chico, CA on 9/2/2012

    1999 Mazda Miata
    Crutchfield Customer Review (What's this?)

    The receiver is excellent, great sound, great accessories. The scoce wiring harness needs a major fix. The good and the bad of this installation for a Miata is this, the wiring harness adapter has a major flaw in one of the wires is not connected properly. I did the installation, had power but no sound - it was perplexing. I called Crutchfield tech and was instructed on a work around to make a proper connection. One of the factory wires (green with black stripe) needed to be cut and directly connected to the new wiring harness. It was impossible to know this without the Crutchfield tech support walking me through it. The tech was outstanding, but this should never have been a problem in the first place. I almost didn't call because everything in the connection looked perfect. Only when the tech identified the work around did I get the stero to work - thank you Techie, but the wiring harness should not have this kind of flaw. Needless frustration.

    Pros: Great stereo for the price.

    Cons: Wiring harness has a major flaw - there is no excuse for the problem. It was impossible to diagnose without the Tech help.

    Good, but not great

    Coleman from Minneapolis, MN on 8/14/2012

    1997 Jeep Cherokee
    Crutchfield Customer Review (What's this?)

    I bought this deck for my 1997 Jeep Cherokee. I wanted to buy something under 100$ and have had good experiences with Sony car audio in the past. I like all the features it has, although I haven't used the USB yet. Navigation of the features is fairly easy, but I did have some trouble figuring out how to change some of the more smaller sound details. My biggest complaint is that it feels really cheap when handling the faceplate, the build quality definitely could be better.



    Sony CDX-GT56UI

    Jack D. from Cass City, MI on 8/1/2012

    2003 Chevrolet TrailBlazer
    Crutchfield Customer Review (What's this?)

    I decided to replace my factory system and specifically chose a Sony head unit as they are notorious for their quality and all around good looks. Following the Crutchfield Master sheet made the install painless and extremely easy. The attention to detail is why I chose to buy from Crutchfield as they made sure I had everything I needed to do a proper install and maintain every bit of the vehicle integrity and safety functionality.

    Pros: The Sony Sony CDX-GT56UI is an amazing unit and is so versatile. I am even able to charge my cell phone while playing MP3s from the memory card without removing it from the phone.

    Cons: Would have been nice if Sony would have been able to incorporate face color changes to match the vehicle interior lighting. A cap over the USB port when not in use would have been a nice compliment as well.

    The Best Choice!

    Walter J from Lakeland, Fl on 6/27/2012

    Crutchfield Customer Review (What's this?)

    This unit is the best unit you will find for ease of use and sound enhancing options in the $0-100 price range HANDS DOWN! I am tempted to buy another one to keep on the shelf. Read the Details tab. If you want HD radio, blue and orange disco lights, or have to talk on your phone through your system then this one isn't for you. If you want clean sound and the ability to customize it to your own personal preference, a USB port on the front with an Excellent search menu for your flash drive and IPOD as well as the tuner, and SiriusXM ready, then you are going to love this Sony! I was instantly impressed with how fast this unit reads my flash drive and how easy it was for me to move around in it. I have a 16gb Lacie that is completely full of music and it's almost as easy to use on this as it is on the computer. I've strayed over the years away from radio but the RDS function and the ability to search radio stations by genre is something that I have never had in my vehicle (94 Chevy Z71) and I really like this option!

    Pros: Ease of use/USB/Aux port/RDS/Search functions in tuner, flash drive, and IPOD/SiriusXM ready/Exceptional sound!/Value

    Cons: Can only think of one Con. There is no door on the USB port to keep FOD out. I'll just keep my Lacie plugged into it.

    perfect fit!

    Larry G from Louisiana on 5/28/2012

    Crutchfield Customer Review (What's this?)

    this purchase was a replacement for a 2001 sony system in a Caravelle Interceptor boat i recently bought. i was an exact fit and it mated up with the old wiring. that was a big plus in my decision to buy it. very fast shipping also. great sound quality and i like the USB port also!!!

    Pros: exact fit

    Cons: None

    Great deal

    soundmandavedeal soundmandave from Spokane Valley, Wa on 5/26/2012

    2001 Subaru Forester
    Crutchfield Customer Review (What's this?)

    Great value. Makes even the stock speakers sound decent. Will be buying another of the same model for my truck in another month. Cructhfield is the place to buy!

    Pros: Great value. Feature rich. Fantastic Sony sound.

    Cons: None

    The best!!

    Tony from Lowell on 5/22/2012

    2002 Ford Escape
    Crutchfield Customer Review (What's this?)

    One the best radios I ever did buy.I`m going to buy another one for my son



    Sony CDX-GT56UI

    Anonymous from Fairbanks, AK on 5/21/2012

    2000 Mazda Protege
    Crutchfield Customer Review (What's this?)

    We hate it and would never buy a sony again. I'm in the market for two more stereos and this will not be going in the other two vehicles. The sound is good, but is is not easy to use or control while driving. Constantly hitting the wrong buttons, or cant find the button's to use. the Remote is much easier to use than the controls on the stereo. Don't buy it unless you love to send a month with your owners manual figuring out how to do simple things.



    Sony CDX-GT56UI - Great bang for your buck!

    Ryan from Overland Park, KS on 5/20/2012

    1997 Ford Escort
    Crutchfield Customer Review (What's this?)

    This head unit has completely changed my opinion of Sony car audio products. 10 years ago I was not impressed with Sony, but they've really made an effort now, and it was apparent from the moment I opened the box. The build quality is top notch. The technology they've incorporated into this unit is not a gimmick; it works. Playing MP3s is a much more enjoyable experience because of it. The USB and AUX inputs on the face is awesome. The user interface and access to settings and adjustments, in my opinion, is as easy (if not easier) to use as other similarly priced units. Sony made no compromises here and included tons of tuning features. It is one of the few units in this price range that still includes a 7-band equalizer instead of going to a crappy 3-band, and it lets you choose a pre-set EQ curve as a base to start from for fine-tuning your custom EQ setting. I love the high and low pass frequency curve-tuning adjusments as well. The little amp in this unit is stout enough to push two 6"s and an old-skool Punch 10" (8ohm) sub and hit surprisingly well (I only ran it like this temporarily and don't recommend trying it). I HIGHLY RECOMMEND THIS SONY!

    Pros: Awesome tunability, super-clear MP3 playback, easy to use, convenient USB flash drive and iPod access/controls. A great bang-for-your-buck factor for the "weekend warrior" enthusiast.

    Cons: Some of the setup menu items aren't abbreviated well enough to figure out what they stand for without looking them up in the user manual. So many adjustments and features are great for an enthusiast, but may be too complicated for the average user.

    Lots of features for the price

    KevinE from Austin, TX on 5/18/2012

    1997 Honda Civic
    Crutchfield Customer Review (What's this?)

    Overall, this is a very good buy. The iPod interface is really great-- gives you lots of flexibility in control. I also really like the custom 7 band EQ, which gives you quite a bit of control over sound quality. But I have found that this system doesn't pull as much bass out of my speakers (Infinity brand) as my old Kenwood deck did, even with "loudness" on and the lower EQ bands turned all the way up. It might be partially my fault, as there are frequency cutoffs you can set if you have a sub. So maybe I just need to figure that out myself, but from what I can tell the normal bass output just isn't amazing.

    Pros: 7 Band EQ iPod interface/connectivity is good

    Cons: Weak bass output Faceplate doesn't come off too easily-- you feel like you have to really force it

    Sony CDX-GT56UI

    Anonymous from Queens, NY on 5/11/2012

    1993 Toyota Camry
    Crutchfield Customer Review (What's this?)

    excelent radio and the sound is great



    Sony CDX-GT56UI

    Shuk from seattle on 5/1/2012

    2001 Nissan Sentra
    Crutchfield Customer Review (What's this?)

    i bought this stereo for my 01 Sentra, and I couldn't be happier. Sound quality is amazing with an unbeatable price.

    Pros: everything



    DanK from Hollister, Ca on 4/23/2012

    2007 Toyota Tacoma
    Crutchfield Customer Review (What's this?)

    Great sound, and all the features I wanted at the right price. Especially like the front panel USB input. Plug in a flash memory stick and I can play my entire music library on MP3 - thousands of songs!

    Pros: USB and front panel mini-headphone input.

    Cons: the fast-forward/ next song control could be made easier to use.

    Sony CDX-GT56UI

    Dean from Park City, UT on 4/16/2012

    2001 Dodge Dakota
    Crutchfield Customer Review (What's this?)

    Have only had it in for a week so still learning all the buttons. Bought it because it was the least expensive CD/Aux/USB I could find. I use the AUX for my SIRIUS radio and my kids IPod and it works like it's suppose to. The USB is a pretty neat thing - I like to download (NPR and other) podcasts onto a USB stick. Plug it in, easy navigation and they play great.


    Cons: Wish the system didn't defalut to Demo screen when the power is disconnected from the battery.

    High Quality/Low Budget System !!!

    CyberDanz from Austin, TX on 4/1/2012

    2006 Chrysler PT Cruiser
    Crutchfield Customer Review (What's this?)

    There are many FM/AM receivers with/without CD/XM options (depending on what you're looking for) that are much more expensive than this particular radio. For being under $100, and considering that you've gone through the process using your make/model to verifiy your available selections, this is an excellent buy! It comes with complete support. It performs exactly as advertised (has lower dB reception offering quality AM/FM reception, preset/customizable EQ curves, XM ready (Sirius), supports many external auxilary devices [IPOD, Mobile Phones, USB Memory Sticks], plays WMA, MP3 files via burned discs without interruption when hitting bumps, along many other minor functions that makes easy listening). It is definitely a must have if quality, diversity, and budget are the key concerns for your purchase!

    Pros: Easy Installation - Full Customer Support (even for the simple things covered in the manual) - Very Customizable - Affordable - Quality Stereo Reception with 16 FM Presets and 12 AM Presets (not to mention it's ability to tell you Station Name and Song Information for those stations which support it - Nice Features (search, album/song detail, zap [a demo per song until you find it search feature], ability to center/de-center sound, adjust sub outputs, etc). - Sirius XM Compatible - Plus More !

    Cons: The only Con in my opinion goes for any aftermarket stereo installation, which is: Can be very difficult to properly wire the harness to factory which involves removing the OEM stereo harness. It is highly recommended to purchases a separate wiring harness for your make/model (aka converter) to preserve the OEM harness (no cutting out the old) and attaching to the new aftermarket radio allowing you to put the OEM radio in the future, if needed. Involves spending more money, but for good cause

    Great Unit

    nahkhii from NC on 3/9/2012

    Crutchfield Customer Review (What's this?)

    Great upgrade from the factory AM/FM radio in my 12 year old Silverado. Good price, easy install, great customer service, quick shipping (and free!), excellent sound when paired with new speakers and all the bells and whistles I need for my old truck.

    Pros: price, sound quality, ease of installation


    Sony Head Unit

    Bigfoot66 from Zwolle, La on 2/8/2012

    1998 Ford F-150
    Crutchfield Customer Review (What's this?)

    Works better than I expected, Great Purchase for the Bucks

    Pros: EQ adds great tone, easy to adjust sound, good detail Instructions for Installation

    Cons: faceplate took 3 tries to snap on, only one display color,

    Very nice deck

    cooper669 from Northern CA on 2/5/2012

    2004 Chevrolet Venture
    Crutchfield Customer Review (What's this?)

    Nice stereo, wife loves it!



    Sony Radio

    Paul from Merino, CO on 2/1/2012

    1999 Toyota Tacoma
    Crutchfield Customer Review (What's this?)

    Very easy to install. Good directions for installation.



    Another good purchase

    DT from Houston, TX. on 1/31/2012

    Crutchfield Customer Review (What's this?)

    All went together well, if you don't mind giving up the finish trim(my truck is 12 yr. old) you will need the wire harness only, as my 2000 nissan frontier radio & this Sony swapped out without a hitch. It is a bit more than I need but not a thing on it I couldn't use

    Pros: Ease of installation

    Cons: Crutchfield making it easy so you want buy more equipment to install yourself

    Sony CDX-GT56UI

    Rob from North Apollo, PA on 1/28/2012

    2001 Saturn SL
    Crutchfield Customer Review (What's this?)

    Excellent radio for the price. Delivered quickly. Easy to install.




    Hands-on research

    Features and Specs

    AUX Input Front
    Audio/video Input ---
    USB Input Front
    CarPlay No
    Android Auto No
    Siri Control No
    Android Control Yes
    Memory Card Slot USB memory
    Bluetooth Compatible No
    Satellite Radio Ready SiriusXM
    HD Radio No
    Navigation ---
    iPod Compatibility
    Full size Classic/5Gen
    Nano 7/6/5/4/3/2/1
    Touch 5/4/3/2/1
    iPhone 5/4S/4/3GS/3G/2G
    CEA-2006 Compliant Yes
    RMS Power Output 17 watts
    Peak Output 52 watts
    RMS Power Bandwidth 20-20kHz
    Preamp Outputs 2-channel
    Sub Preamp Outputs No
    Switchable Rear Preamp Outputs Yes
    Video Screen No
    Preamp Voltage 2 volts
    Display Color White/Black
    Key Button Color Red
    EQ Bands 7
    Wireless Remote Yes
    Steering Wheel Control Compatible Adapter required
    Parts Warranty 1 Year
    Labor Warranty 1 Year
    FM Sensitivity 8 dBf
    European Tuning No
    Seek/Scan Seek
    Radio Data System Yes

    Product Research

    Radio Functions
    Disc Playback
    USB/iPod/Aux Connectivity
    Audio Section
    Display Features
    Remote Control

    Radio Functions

    Digital Clarity Tuner: The Sony CDX-GT56UI is equipped with a Digital Clarity Tuner for clear AM/FM stereo sound with digital processing technology.

    RDS: The Radio Data System (RDS) feature displays radio broadcast information such as artist & track information when listening to compatible AM/FM stations.

    Preset Stations: The radio features 5 memory bands to store and receive AM/FM stations. You can store up to 6 presets each in band (FM 1-3, AM 1-2).

    Best Tuning Memory (BTM): This feature automatically selects stations with the best signals within the selected band (FM 1-3), AM 1-2) & stores them in order of their frequency.

    Manual/Seek Tuning: The CDX-GT56UI allows you to manual tune or seek tune AM/FM stations.

    • Manual Tuning: You can manually tune & find your favorite radio stations one by one.
    • Seek Tuning: You can use the seek button to help you search quickly through the available AM/FM stations.

    Local Mode: In the Local Seek Mode, the unit will only tune in stations with very strong signals during Seek tuning.

    Mono Mode: The Mono Mode allows you improve poor FM reception by selecting a monaural signal instead of a stereo signal.

    SiriusXM Ready: The Sony CDX-GT56UI comes ready for SiriusXM programming with access to XM and Sirius Satellite Radio stations. Thanks to its proprietary SiriusXM Connect port, you can add the optional SXV200V1 SiriusXM Connect tuner and receive more than 150 channels of exclusive programming directly from SiriusXM, via the "SiriusXM All Access" package (subscription required). Visit for a complete list of subscription options and channel guide. Additional features of the SXV200 SiriusXM Connect tuner include:

    • Channel list displays a list of all available channels
    • Category Search searches for channels in a certain category
    • Displayed Information such as Channel Name, Artist Name, & Song Title can be viewed on the head unit's LCD
    • Up to 18 SiriusXM Satellite Radio station presets
    • Channels containing unsuitable content for children can be blocked

    Note: A separate SiriusXM Satellite Radio subscription is required (operates on the XM Network). If you already have a Sirius Satellite Radio subscription, this radio cannot be added as a discounted second unit. If you have an existing XM Satellite Radio subscription, you can add this unit as a discounted second unit.

    Disc Playback

    Disc Compatibility: The unit features a single disc player that will playback CD-Audio, CD-Text, and finalized CD-R/CD-RW audio discs (12cm only).

    MP3/WMA/AAC Playback: The Sony CDX-GT56UI allows you to playback CD-Rs or CD-RWs loaded with MP3, WMA, or AAC songs (up to 320 kbps) recorded in ISO 9660 level 1 or 2, Joliet/Romeo, or Multi-Session. The CDX-GT56UI can support up 150 folders, and a combined 300 folders & files on a disc. The head unit will also display song information for MP3, WMA, and AAC music files (Joliet: up to 32 characters, Romeo: up to 64 characters).

    Note: Not all MP3, WMA, AAC files may playback due to file variations. Copyright protected ACC-LC files cannot be played back.

    Compressed Audio Display Information: The CD receiver can display the following CD-TEXT or ID3/WMA-tag information - Track number, Elapsed Playing Time, Song Title, Artist Name, or Album Label.

    Quick-BrowZer: The unit's Quick-BrowZer feature allow you to search for a track on a CD, iPod, or from your connected USB Mass Storage Device easily by category (Genre, Artist, Album, or Playlist).

    Jump Mode: Jump Mode gets you closer to the song you want by allowing you to fast forward through a music category in 10% increments.

    Zappin: With the Zappin feature, you can play music (files or folders) in 6, 15, or 30-second clips until you find the song you are looking for on your CD or connected USB device.

    Off Insert/Eject: A CD disc can be inserted or ejected with the power off. The head unit will automatically begin disc playback, when a disc is inserted with the receiver set to a different source or powered off.

    Auto Reload: The CD player will automatically reinsert the disc if it's ejected, but not removed for 20 seconds or more.

    Mounting Angle: For proper CD playback, this unit must be mounted between 0° (horizontal) and 45°.

    USB/iPod/Aux Connectivity

    USB Port: The receiver's front-panel (type-A) USB port can be used for plugging in a (MSC) Mass Storage Class or MTP (Media Transfer Protocol) type USB device. The head unit can play music files stored on the USB device in MP3, WMA, or AAC formats (up to 320 kbps). The head unit can recognize up to 128 folders with 500 tracks each when connected to a USB Mass Storage Device. The CDX-GT56UI offers the following USB search, playback, and display functions.

    • Search Modes:
      • Quick-BrowZer: allows you to search for a track on a connected USB device easily by category (Genre, Artist, Album, or Playlist)
      • Jump Mode: gets you closer to the song you want by allowing you to fast forward through a music category in 10% increments
      • Zappin: play music (files or folders) in 6, 15, or 30-second clips until you find the song you are looking for on your connected USB device
    • Playback Modes:
      • Repeat: repeat a single track or repeat an entire album
      • Random: shuffle all tracks or a specific album
    • Display Information:
      • Numeric Text: track number and elapsed playing time
      • Alphanumeric Text: song title, artist name, and album label

    Note: This unit cannot recognize USB devices via a USB hub. Not all MP3, WMA, AAC files may playback due to file variations. Copyright protected ACC-LC files cannot be played back.

    USB 1-Wire iPod/iPhone Control:  The GT56UI's front-panel USB port allows you to connect your iPod/iPhone via a single cable (iPod dock connector-to-USB cable; not included with the head unit). This USB 1-Wire for iPod/iPhone connection lets you directly connect, charge, & control select iPod/iPhones via the USB jack on the front of the unit, as well as view metadata like song title & artist name on the front display.

    • Bypass iPod DAC: The USB connection allows your iPod/iPhone's stored music to be loaded instantly to the head unit and sound quality to be maximized through the head unit's 24-bit D/A converter (bypassing iPod/iPhone DAC), allowing for a Signal-to-Noise ratio up to 120dB.
    • Information Display: The head unit will display your iPod/iPhone's music file information, including - Track #, Elapsed playing time, Song title, Artist name, and Album label.
    • Music Navigation: You can choose to control the iPod/iPhone from the head unit or from your iPod/iPhone's clickwheel or touchscreen.
      • Quick-BrowZer: the Quick-BrowZer feature allows you to browse your iPod/iPhone's music library by Artist, Album, Song, Genre, Playlist, or Podcast
      • Alphabetical Search: search within a specific Quick-BrowZer category or All tracks alphabetically (A-Z)
      • Zappin: with the Zappin feature, you can play music tracks & albums in 6, 15, or 30-second clips until you find the song you are looking for on your connected iPod/iPhone
      • Repeat & Shuffle Play: Repeat (Track/Album) & Shuffle (Album) playback modes
    • Charging: While connected and the ignition switch is set to ACC or ON, the head unit's USB connection will power and charge your iPod/iPhone. If your iPod/iPhone has no initial battery charge, then this unit will not recognize it.

    Note: If you have an iPod nano (7th gen), iPod touch (5th gen), or iPhone 5; use the Lighting-to-USB cable that came with your Apple device to connect to the head unit.

    iPod/iPhone Compatibility Chart: The Sony CDX-GT56UI is "Made for iPod/iPhone" compatible and supports the following iPod/iPhone model features (as of 9/25/2012):

    Apple Device Generation Tested Version Media Type Control Type Display Type Charge
    Audio Video Head Unit iPod App mode Artist/Song Text Track Info
    iPhone 2G 3.1.3 Y N Y Y Y Y Y Y
    3G 4.2.1 Y N Y Y Y Y Y Y
    3GS 5.1.1 Y N Y Y Y Y Y Y
    4 6.1 Y N Y Y Y Y Y Y
    4S 6.1 Y N Y Y Y Y Y Y
    5 6.1 Y N Y Y Y Y Y Y
    touch 1st 2.2.1 Y N Y Y N Y Y Y
    2nd 4.2.1 Y N Y Y N Y Y Y
    3rd 5.1.1 Y N Y Y N Y Y Y
    4th 6.1 Y N Y Y N Y Y Y
    5th 6.1 Y N Y Y N Y Y Y
    nano 1st 1.3.1 Y N Y N N Y Y Y
    2nd 1.1.3 Y N Y Y N Y Y Y
    3rd 1.1.3 Y N Y Y N Y Y Y
    4th 1.0.4 Y N Y Y N Y Y Y
    5th 1.0.2 Y N Y Y N Y Y Y
    6th 1.2PC Y N Y Y N Y Y Y
    7th 1.02 PC Y N Y Y N Y Y Y
    classic 80GB 1.1.2 Y N Y Y N Y Y Y
    120GB 2.0.1 Y N Y Y N Y Y Y
    160GB 2.0.4 Y N Y Y N Y Y Y
    video 5th 1.3 Y N Y N N Y Y Y
    iPad 1 5.1.1 Y N Y Y Y Y Y N
    2 6.1 Y N Y Y Y Y Y N
    3 6.1 Y N Y Y Y Y Y N
    4 6.1 Y N Y Y Y Y Y N
    mini 6.1 Y N Y Y Y Y Y N
    Note: Apple iPod/iPhone software updates may change functionality results. If you download a newer software version, you may need to reset the head unit and your iPod/iPhone to regain functionality. If this doesn't work, you may need to wait until a newer software update is available.

    Front Panel Auxiliary Input: A front panel stereo 3.5mm mini-jack is provided to allow the connection of a portable audio source. Just connect your portable digital music player to this unit, and you can listen to the audio from the portable player through the speakers in your mobile audio system. The volume level of the auxiliary input is adjustable from -8 to +18 dB to compensate for any difference between the unit and your portable device.

    Audio Section

    True Fidelity Sound Construction: The Sony CDX-GT56UI AM/FM compact disc player features a newly developed sound processor for less distortion, an S-MOSFET IC for smooth signal transmission, and a large-sized high power capacitor for deep bass sound.

    Dynamic Reality Amp: The CDX-GT56UI is equipped with Sony's Dynamic Reality Amp to produce 3 dimensional sound staging for more realistic sound inside your vehicle.

    CEA2006 Compliant Amplifier: The power specifications for the Sony CDX-GT56UI are compliant with the CEA2006 Mobile Amplifier Power Testing and Measurement standards from the Consumer Electronics Association (CEA). These standards were developed as a way to equitably compare power specs from model to model and between manufacturers. The power output specs for the CDX-GT56UI are as follows:

    • Continuous Power Output: 17 watts RMS x 4 channels (at 4 ohms, 20Hz-20kHz, 1% THD-N)
    • Peak Power Output: 52 watts x 4-channels (208 total watts)

    Switchable Rear/Subwoofer 2V Preamp Output: The Sony CDX-GT56UI is equipped with a switchable rear/subwoofer 2-volt preamp output for connecting a full-range or subwoofer amplifier.

    Subwoofer Controls: When the unit's subwoofer output is activated, the preamp output becomes non-fading & a low pass filter is activated with a selectable cut-off frequency of 50Hz, 60Hz, 80Hz, 100Hz, 120Hz, or Off. You can also adjust the slope (1/2/3) of the low-pass crossover. You can adjust the subwoofer preamp output's volume level independently from the head unit's volume control from -10 to +10 in 1dB increments. In addition, you can select the phase of the subwoofer output from Normal or Reverse.

    High-Pass Filter: The front & rear speaker outputs offer a selectable high-pass crossover frequency of 50Hz, 60Hz, 80Hz, 100Hz, 120Hz, or Off. You can also adjust the slope (1/2/3) of the high-pass crossover.

    Advanced Sound Engine: Sony's Advanced Sound Engine creates an ideal in-car sound field with digital signal processing. Advanced Sound Engine contains the following features: EQ7, Listening Position, DM+ Advanced, Rear Bass Enhancer, & Dynamic Loudness.

    • EQ7: You can select an equalizer curve from eight music types - Xplod, Vocal, Edge, Cruise, Space, Gravity, Custom, or Off (Flat). The Custom EQ7 mode allows  you to make  your own equalizer settings. You can adjust the level (+/-6dB) of seven different frequency bands - Band1 (63Hz), Band2 (160Hz), Band3 (400Hz), Band4 (1kHz), Band5 (2.5khz), Band6 (6.3khz), and Band7 (16.0kHz).
    • Listening Position: This unit can change the localization of sound by delaying the sound output from each speaker to suit your position, and simulate a natural sound field with the feeling of being in the center of it wherever you sit in the car. You can choose from Front Right, Front Left, Front Center, or Off. You can also set the subwoofer distance of the subwoofer to Near, Normal, or Far
    • RBE (Rear Bass Enhancer): RBE enhances the bass sound by applying the low-pass filter setting to the rear speakers. This function allows the rear speakers to work as a subwoofer even if there is no subwoofer connected.
    • Dynamic Loudness: Dynamic Loudness refers to compensating for volume level & signal gain.
    • DM+ Advanced: DM+ Advanced improves digitally compressed sound by restoring high frequencies lost in the compression process (works only for USB).

    Automatic Level Optimizer: Automatic Level Optimizer analyzes each track's playback level & adjusts the output level to optimize transitions between tracks & sources.

    Beep Tone: The in-dash head unit provides an audible beep to confirm button operation. This function can be turned On or Off.

    Display Features

    Detachable Face: The Sony CDX-GT56UI features a detachable face for theft prevention. A face-fixing screw is supplied for making the face non-detachable, if desired. No face case is included with this unit. An optional soft face case (142DFC1X, sold separately) can be purchased for this unit.

    Caution Alarm: If you turn the ignition switch to the Off position without detaching the head unit's front-panel, the caution alarm will sound for a few seconds. The alarm will only sound if the unit's built-in amplifier is used.

    1-Line LCD Display: The Sony CDX-GT56UI features a 1-line LCD display for viewing radio & song information.

    Motion Display: This feature shows moving patterns on the display when turned on.

    Auto Scroll: This feature allows long displayed items to scroll automatically across the display when the track is changed on a disc.

    Display Illumination/Clock Display: Pressing the Source/Off button once will switch sources. Pressing and holding the Source/Off button for one second will turn off audio output, but the clock display and button illumination remain on. To turn the unit off completely, you must press and hold the Source/Off button for two seconds.

    Dimmer: The CDX-GT56UI feature a dimmer mode to dim the brightness of the display. You can choose from either "Dim On" or Dim Off".

    Auto Off: When installing in a vehicle without an accessory power wire at the radio location, you can set the unit to turn off all lighting a set amount of time after you turn the power off. The Auto Off feature can be set to 30 seconds, 30 minutes, 60 minutes, or No.

    Demo Mode: The head unit's demo mode can be turned On or Off.

    Remote Control

    Wireless Remote Control: The head unit comes supplied with an IR wireless remote control (RM-X211) for easy operation. The included wireless remote allows you to control the basic functions of the Sony head unit while keeping your eyes on the road.

    Steering Wheel Remote Compatibility: The head unit features an OEM steering wheel remote control input on the rear of the unit that lets you keep your vehicle's factory radio steering wheel remote controls when used with an optional steering wheel audio control adapter (sold separately). Please consult Crutchfield's Outfit My Car to see if your vehicle is compatible.

    Our Product Research Team

    At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.