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USA SPEC Auxiliary Interface

Connect a music player to your 2000-up Chrysler factory radio

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Item #: 581DFCHR
 

Review Summary

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Our take on the USA SPEC Auxiliary Interface

by Tim Sprinkle
USA Spec

Enjoy maximum possible sound quality when you play your portable music through your Chrysler's factory radio. USA SPEC's innovative DF-CHR adapter lets you connect your portable music player directly to your compatible 2000-up Chrysler factory radio. Just plug the adapter cable into your radio's CD changer input, mount the interface box, and you're ready to listen to your tunes.

And the news gets better — if you also have another sound source you want to hook up to your Chrysler's sound system, the DF-CHR provides a second set of connections for an iPod, satellite radio tuner, or DVD player. You can switch between sources with your factory radio controls. Warranty: 1 year.

Please enter your vehicle information or call a Sales Advisor at 1-888-955-6000 to find out if this adapter is compatible with your vehicle.

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Hands-on research from the Crutchfield Labs (what are the Labs?)

Product Research
What's in the box?

Download owner's manual

  • Auxiliary interface adapter
  • 16' CDL-CXi cable (has a rectangular 10-pin connector and a round 8-pin connector on one end and a round 8-pin connector on the other end)
  • 4 Self-tapping screws
  • Owner's Manual

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 open the box, verify contents, 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.

Features

Compatibility: The DF-CHR allows you to add two auxiliary inputs to the factory radio in select Chrysler vehicles. The adapter plugs into the factory system using the supplied cable, avoiding wire splicing and modifications. Since the adapter is controlled by the factory radio, the available controls should be described in the factory manual.

Note: The adapter is not compatible with vehicles that have factory navigation and DVD systems. The adapter takes the place of the CD changer, so you cannot have a CD changer and the adapter connected to your vehicle at the same time.

Mounting: The adapter can be secured to any flat surface using the supplied mounting screws.

Connections: The adapter has two auxiliary inputs (Audio Input 1 and 2) on the left side panel. Each input consists of left and right RCA audio jacks. On the right side panel, the adapter has a round 8-pin jack that interfaces with the supplied CDL-CXi cable. The adapter end of the cable has a round 8-pin connector that plugs into the adapter. The opposite end of the cable has a rectangular 10-pin connector and a round 8-pin connector. If your factory radio has a Mode button, then you should use the rectangular 10-pin connector. If your factory radio has a CDC button, then you should use the round 8-pin connector. The appropriate connector plugs into the factory changer cable.

 
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USA SPEC Auxiliary Interface Reviews

Average Customer Review:

31 people say:

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1 out of 5

consistent problem

Written By Amp, Portland, OR on Sunday, March 24, 2013
Crutchfield Customer Review (What's this?)
 
This unit worked great for about a month. Then it suddenly stopped working. I called and got a replacement from Crutchfield, but that unit only worked for about a month as well. There seems to be something inside the unit that consistently fails after a couple of hours of use.
Pros:
Works great when it works.
Cons:
It doesn't work for very long.
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4 out of 5

Pretty decent product

Written By Scott, Pikeville, NC on Friday, May 29, 2009
Crutchfield Customer Review (What's this?)
 
I have used this product in my 2005 Dodge SRT-4 for the last few years and it basically has worked flawlessly. I see from some of the other reviews that there tends to be an issue with the volume or sound quality degrading over time. I have run into this issue occationally when I first plug the ipod into it. However after a short period of time or by pushing a bunch of buttons on my stock radio it tends to fix it's self. I pass it up as a glitch in how the adapter and the stock radio send/receive signals through the 6 cd changer port. Like I said, I have used it for awhile and really have never had any real issue with it. Would definitely recommend to anyone looking for a cheap and easy way to hook up an Ipod or other MP3 device to their car.
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1 out of 5

Good idea - poor quality

Written By Daniel, Cleveland, OH on Tuesday, November 04, 2008
 
I've had two of these units in my 2002 Chrylser 300M. The first unit lasted about a year, and this one about two years. Both developed the same problem - they work fine until suddenly the sound quality degrades (no bass). Also, I noticed that the unit starts sending the signal on both CD channels instead of just the channel that the MP3 is connected to. Great idea, USA SPEC, but due to these issues I cannot recommend these units.
1 out of 1 people found this helpful
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1 out of 5

Dustin

Written By Dustin, Dover, PA on Friday, August 29, 2008
Crutchfield Customer Review (What's this?)
 
This unit allowed me to line-in my Sirius receiver directly into my 2003 Dodge RAM 1500 through its vacant 6 disc CD changer connector. However, after 2 months of use, the sound quality descreased drastically. I have to turn my radio's volume up all the way to barely hear the sound. The sound quality is very poor. I am in the process of contacting the vendor (USA Spec) directly for a warranty claim as Crutchfield informed me they cannot issue me a new unit.

Very dissastified. I will probably end up paying to purchase a different head unit that has a Aux input.
1 out of 1 people found this helpful
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4 out of 5

USA SPEC Auxiliary Interface

Written By bub, ga on Wednesday, February 27, 2008
Crutchfield Customer Review (What's this?)
 
Easy to install and worked as advertised. The only thing missing is an input gain control. Good sound quality.
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5 out of 5

Great little device

Written By David, Long Beach, CA on Wednesday, January 30, 2008
Crutchfield Customer Review (What's this?)
 
This interface works great!! Easy to install and very small in size, fits behind the factory stereo. Installed in a 2003 Dodge Ram 2500, lets me plug in my satellite radio and my ipod without having wires everywhere!! Thanks Crutchfield!!
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3 out of 5

This was great...while it worked!

Written By Joe, Newark, DE on Wednesday, January 23, 2008
 
The install for this was incredibly easy on my 2005 Chrysler. I used this a great deal for my MP3 player, almost every day. The sound was excellent,; much better than the cassette adapter I had been using. Unfortunately, this stopped working yesterday. Lasted only about 6 months.
1 out of 1 people found this helpful
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3 out of 5

USA SPEC Auxiliary Interface

Written By Jeffrey, Orlando, FL on Wednesday, January 23, 2008
Crutchfield Customer Review (What's this?)
 
I purchased this item because I needed something better than a cassette adapter or FM modulator for my XM radio and Ipod, and am prohibited from changing the radio in my company vehicle. It was very easy to install, but it does act up on occasion. It sometimes fails to change inputs, but this is usually cleared up by turning the radio off for a minute. It did completely hang up in one instance, which I corrected by disconnecting the input cable to the radio momentarily. Despite these minor problems, I am happy with this item, but rate it only a three since it does not work perfectly all the time.
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5 out of 5

USA SPEC Auxiliary Interface

Written By stonner, Texas on Saturday, January 19, 2008
Crutchfield Customer Review (What's this?)
 
Huge improvement over the fm transmitter playing through the radio, especially in audio quality ... and I don't have to constantly hunt for a clear frequency when on a road trip (I hated doing that!).
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5 out of 5

MP3 player adaptor

Written By Alan, Pittsburgh, Pa. on Monday, January 14, 2008
Crutchfield Customer Review (What's this?)
 
It took about 20 minutes to install, good directions and works very well. The sound quality was better than expected. This was installed in a 2006 Jeep Wrangler Unlimited. Very pleased with the product and ease of installation. Would recommend this product highly, so nice not to have have CD's any more. I am using a Zen MP3 player.
2 out of 2 people found this helpful
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5 out of 5

More PT sounds

Written By PeterD, Memphis, TN on Thursday, October 11, 2007
Crutchfield Customer Review (What's this?)
 
Really easy to install especially with the dash face removal guide. I had the radio out in under 5 min. The interface cable pluged in the back with no problems. The radio and interface unit fit back easly, and it was buttoned up and ready to go in less than 20 min. It would have been done sooner but I decided to use a female mini plug for the mp3 player to plug into so it took a few minutes to find the best place to put it. My mp3's sound great playing through the radio (music and pod casts).
2 out of 2 people found this helpful
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5 out of 5

USA SPEC Auxiliary Interface

Written By Gary, Los Angeles on Saturday, May 19, 2007
Crutchfield Customer Review (What's this?)
 
Working for two weeks so far. Took just under 2 hours to install. I have Dodge Dakota and the hardest part was getting the dash trim off. Had to put the gear shift in Low 1, which meant blocking the wheels since the brake release has to be disconnected. Didn't think about tilting the steering wheel. Haven't found a good place to mount - just under the seat now with velco tape. Sound isn't quite as loud or clear as CDs, but that may just be the mp3 quality. Overall a good product that I am satisfied with. By the way FM transmitters do not work in LA area.
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5 out of 5

EXCELLENT!

Written By jowille, Front Royal, VA on Monday, May 14, 2007
Crutchfield Customer Review (What's this?)
 
Excellent product! It is very small, much smaller than I expected. It fit behind the factory stereo in my 2004 Grand Cherokee, with no problem. I have both aux inputs hooked up... one to my sirius dash mounted satellite radio, and the other for my mp3 player. Sounds Great!
2 out of 2 people found this helpful
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5 out of 5

No more FM modulator static!

Written By Michael, Raleigh, NC on Friday, May 11, 2007
Crutchfield Customer Review (What's this?)
 
The USA Spec Auxiliary Interface I bought works great with my Sirius, no more static from FM modulators. It even has a second connection so I can have my MP3 player to switch back and forth to, using the factory CD changer controls in my '03 Ram. It is actually smaller than it looks in the picture and very easy to hide in the dash. All-in-all, a great unit that does what it claims it will.
1 out of 1 people found this helpful
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4 out of 5

Good solution for Sirus, IPod

Written By Mike, Derby KS on Monday, January 08, 2007
Crutchfield Customer Review (What's this?)
 
I installed mine in a 2003 Jeep Liberty; it fit nicely in a open space to the right of the radio inside the dash.

The first unit died before I could finish installation. Crutchfield sent me a replacement pronto (wonderful service!), and the second one started to act up when I had everything tucked in. I checked connections, and found one of the wire connections in the harness that plugs into the back of the radio had come loose. I worked the wire connection back into place with needlenose pliers, and it works fine now.

The harness is the only thing about the unit that bothers me. Wires connect loose into the back of the square plug that goes into your radio, and you really should be very careful not to stress those wires. Otherwise, it can lead to problems. (I wonder if that was an issue with some of the other early deaths).

But, when it works, it's great, and allows you to connect two inputs direct to your radio. I've used it for my Sirius and Ipod, and it sounds wonderful.
4 out of 4 people found this helpful
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4 out of 5

Great for iPods and Sirius in a Dodge Stratus '04

Written By Scott, Chicago, IL on Monday, June 19, 2006
Crutchfield Customer Review (What's this?)
 
Took about 5 minutes to install in my '04 Dodge Stratus. Excellent sound quality for $70 and a must for urban dwellers where FM modulators blow. I use it with my iPod and Sirius Starmate receiver. For my iPod I recommend using an RCA cable that plugs into bottom of iPod. This will create EXCELLENT BASS output and no extra volume controls! Still works great with regular RCA to headphone jack.

Overall, very easy to operate and install, no drilling and everything is hidden.

Had to send first one back, Crutchfield was great and send out a replacement part right away. Original stopped working in the first 30 days. It was a hot Chicago day, got into my car after work, and it didn't do anything. The radio didn't even recognize it. Will see how long this one lasts. That's why my rating is only 4 out of 5 stars.

Overall, if this part continues to works, it is the best purchase in a longtime.

Thanks, Crutchfield!
6 out of 6 people found this helpful
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4 out of 5

USA SPEC Auxiliary Interface

Written By Jordan, Pennsylvania on Sunday, June 04, 2006
Crutchfield Customer Review (What's this?)
 
This was by far the easiest addition I have ever made to my sound system. It took me longer to tear apart my dash then it did to hook up the auxiliary interface. It's great having portable music in my ride now! The only down side is that volume level is going to be slightly less than if you had a cd in the player. Too much volume from my mp3 player gives it a hollow sound. You have to find a level on the mp3 player that'll work well with your speakers. Otherwise this is a great product for those people who do not have an iPod, but want to listen to their mp3 players as they drive.
2 out of 2 people found this helpful
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5 out of 5

USA SPEC Auxiliary Interface

Written By Jason, GA on Thursday, May 25, 2006
Crutchfield Customer Review (What's this?)
 
Great product. I am using it in my 2004 Rubicon and the instructions supplied by Crutchfield were perfect. Easy install and now I have CD quality music without having CD's in the jeep. No more worrying about theft or scratching CD's...awesome.

I highly recommend this product. Thank you USA SPEC and thank you crutchfield.
4 out of 4 people found this helpful
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5 out of 5

Worth every cent

Written By Patrick, Marlborough, MA on Monday, March 27, 2006
 
I own a 2003 Dodge Ram 1500. I purchased a creative zen mp3 player with the idea of using one of the FM transmitters to play all my mp3's in my vehicle. Well the transmitters do not work in or anywhere near Boston because of all the college radio stations. You simply cannot find any dead air space to tune in the transmitter as needed. Even if you live in the sticks I wouldn't recommend an FM transmitter. Next I came across the USA SPEC Auxiliary Interface on the crutchfield site and was very excited about the idea of being able to plug the zen directly into my car radio (no fm signal bull). Anyway when I first got the device with the instruction I was a bit intimidated because you need to get at the back of the radio which requires removing a section of the dash. This turned out to be far easier than I ever imagined. Took one screw out and with little patients popped the 7 or 8 clips to remove the section of the dash to access the radio. 4 screws later I had the radio out and the adapter plugged in. The instruction provided by crutchfield were very detailed and made installing this product a breeze. After all was put back in place I loaded up a playlist and went for a long ride. I can say that the quality of sound was better than if I had a cd in the radio and I could turn the volume up as loud as I wanted and it sounded perfect. This product is worth every cent if you want to use your mp3 player in your vehicle. Providing the installation is as easy as it was in the RAM I highly recommend the USA SPEC Auxiliary Interface to anyone looking to use their players in the car. 5 Star rating on both the product and the excellent instructions provided by crutchfield.
7 out of 7 people found this helpful
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2 out of 5

USA SPEC Auxiliary Interface

Written By Brendan Mason, WA on Wednesday, January 25, 2006
Crutchfield Customer Review (What's this?)
 
This device is okay, but not great by any stretch. The first one worked for about 2 hours, then died. I got the replacement from Crutchfield and have been using that one for about 2 months now. It works most of the time, but sometimes the right channel gets distorted or goes out completely at random. 2 lemons in a row and the constant backordered status makes me think they're rushing these things out the door with minimal (if any) quality control.
3 out of 4 people found this helpful
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5 out of 5

Can't get more convenient

Written By Soulive21, North Jersey on Tuesday, November 08, 2005
Crutchfield Customer Review (What's this?)
 
I just installed this on my 2005 Liberty in about 30min. The only problem I had (Jeep problem, not interface problem) was unlatching a clip on the stereo panel. I didn't even have to instructions w/ me at the time. I ended up keeping it in the glove box and hiding the wire under the center console panel(not difficult). The only minus is its not as loud as CDs, but thats negligable. I was previously using the Belkin Tunecast and I wish I found this first. This is the best/easiest remedy and I've never done anything technical to a car before. I highly recommend it for everyone! Thanks Crutchfield!
2 out of 2 people found this helpful
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5 out of 5

2001 Dodge Dakota

Written By Mitch, Dickson, TN on Tuesday, October 25, 2005
Crutchfield Customer Review (What's this?)
 
Installation went as expected, though when removing the dash, the Crutchfield installation instructions should recommend tilting the steering wheel down and removing the rubber boot from the dash to get it around the steering wheel. The longest part of the installation was deciding where to mount this thing. There's not much room in a standard cab and I'd like to be able to have access to the RCA jacks. I wound up putting it on the top of the air duct to the passenger foot well. It's removable with only two screws. I could drill mounting holes for this product in the duct and mount it. When the duct is replaced, this product is in a space next to the blower enclosure, hidden by a sheild that also hides the blower resistor. You have to stick your head in the foot well to see it, but it's easily accessible.
2 out of 3 people found this helpful
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5 out of 5

USA SPEC Auxiliary Interface

Written By Gilles, Round Rock, TX on Monday, September 12, 2005
Crutchfield Customer Review (What's this?)
 
The master sheet made the installation really easy. The device works perfectly in my Jeep wrangler. My MP3 player is now locked in my glove box, just the remote that gets out under the glove box. The sound quality is perfect (same has if CD would be connected). Now I have more song than a CD changer without having to keep my disc in the car!
3 out of 3 people found this helpful
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5 out of 5

USA SPEC Auxiliary Interface

Written By Geoffrey, Warren, MI on Thursday, August 25, 2005
Crutchfield Customer Review (What's this?)
 
Great product. Installed in my 2002 Jeep Liberty in about 30 minutes (and I've never tried to pull a radio out of any car before). The sound with my Ipod through the stereo is fantastic- even with the songs ripped at just 128kbps. The best investment I've made for my Jeep.
4 out of 4 people found this helpful
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5 out of 5

USA SPEC Auxiliary Interface

Written By Anthony, Sterling, VA on Sunday, August 21, 2005
Crutchfield Customer Review (What's this?)
 
Using this with the OmniFi DMP1 in a 2005 Dodge Ram and it works great. Plugs into the factory radio and installation is complete.
1 out of 1 people found this helpful
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5 out of 5

Great option for an older iPod

Written By Tommy, Queens, NY on Wednesday, July 27, 2005
 
This works great. My iPod is an older model with the firewire and headphone jack so I can't use the other adapter by USA Spec. The second input will allow me to watch my portable DVD player or hook up a satellite radio down the road. Great product.
2 out of 2 people found this helpful
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4 out of 5

USA SPEC Auxiliary Interface

Written By Eric, New Jersey on Thursday, July 21, 2005
Crutchfield Customer Review (What's this?)
 
I just installed this in my 2003 Jeep Grand Cherokee for my ipod. It was very easy to install, but the cable that comes with it is very thick so routing it from the back of the head unit was a little tricky. The sound is terrific, and it is a much better solution than the one made for the ipod. At least with this you get to control the ipod directly and not have to setup playlists.
2 out of 3 people found this helpful
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5 out of 5

USA SPEC Auxiliary Interface

Written By Trent, Dayton, OH on Tuesday, June 28, 2005
Crutchfield Customer Review (What's this?)
 
Works flawlessly for our 2001 Jeep Grand Cherokee.
6 out of 6 people found this helpful
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5 out of 5

Excellent Piece of equipment at a great price!!

Written By Matthew, Eastern CT on Monday, April 11, 2005
Crutchfield Customer Review (What's this?)
 
Works great, easy to install, lets you add two other items to the stereo!!
11 out of 11 people found this helpful
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5 out of 5

USA SPEC Auxiliary Interface

Written By John Morgan, Granbury, TX on Tuesday, April 05, 2005
Crutchfield Customer Review (What's this?)
 
This unit is small, making for an easy and concealed installation. The cable that connects to the head unit is long enough to give you many install location options. The sound transfer from the iPod to the factory radio is excellent. This is really a great option over the FM transmitters. This is a great product, for a great price, that does exactly what is says it will do.
21 out of 26 people found this helpful
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1 out of 5

WILL NOT WORK WITH "RBQ" HEAD-UNIT

Written By John Walker, Salt Lake City, UT on Tuesday, March 01, 2005
 
I have a 2004 Dodge Ram Pick-up with the in-dash 6 disc changer head unit (AKA "RBQ"). I called USA Spec after the one I ordered did not work and they indicated that the RBQ and RB1 head-units are currently incompatible with this device.
18 out of 38 people found this helpful
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For a more in-depth review and enhanced detailed information on the USA SPEC Auxiliary Interface, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_581DFCHR/USA-SPEC-Auxiliary-Interface.html ).