Clean and simple doesn't have to mean stripped down. Blaupunkt's easy-to-use London MP37 CD receiver presents a refined appearance, but it also boasts plenty of attractive features with lots of options for system upgrades.

Blaupunkt places the front-panel controls where they're easy to reach, so you won't have to fumble around while you're driving. The adjustable Variocolor display offers 4,096 different color choices to match your car or your mood. You'll find a convenient auxiliary input on the fold-down face for hooking up a portable MP3 player or plug-and-play satellite radio.

A sturdy amp kicks out the tunes, assisted by three preset EQ curves and an adjustable bass boost to refine the overall sound. Front, rear, and subwoofer preamp outputs give you plenty of room to expand with external amps.

Augment your musical choices with Blaupunkt's iPod® adapter. Or add Blaupunkt's optional Bluetooth® adapter — it lets you use your Bluetooth wireless phone hands-free while you drive, and gives you a USB port for a portable music player or other USB storage device.

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 or its optional iPod adapter.

Bluetooth note: Use of this receiver's Bluetooth features will depend upon your phone's Bluetooth capabilities. Learn more in our article explaining Bluetooth profiles.

Product Highlights:

    General features:
    • CD receiver with built-in amplifier (18 watts RMS/45 peak x 4 channels)
    • plays CDs, CD-Rs, and CD-RWs (including discs loaded with MP3 and WMA files)
    • detachable face
    • Variocolor display
    • remote control
    Audio features:
    • 3 preset EQ curves ("Rock," "Pop," and "Classic")
    • X-Bass bass boost
    • compatible with optional Blaupunkt Bluetooth adapter
    • compatible with optional Blaupunkt iPod adapter
    • auxiliary input (front panel) with option for second input
    • two sets of preamp outputs plus subwoofer output
    Other features and specs:

    Why replace your factory radio?

    Two good reasons - sound quality and cool features. A new car stereo offers power that's superior to most factory radios, along with more sophisticated tone controls. And most car stereos offer built-in or optional features that add safety and fun to life in your car, including inputs for your iPod or MP3 player, Bluetooth connectivity for hands-free cell phone calls, satellite radio or HD Radio reception, and connections for building an audio system in your car.

    Hands-on research

    What's in the box?

    Download owner's manual

    • AM/FM/CD receiver with a 10A fuse inserted in the chassis
    • Face
    • Sleeve
    • Trim ring
    • Wireless remote control
    • CR2025 battery
    • Power wiring harness
    • Speaker wiring harness
    • Line output harness (4-channel)
    • 2 Radio removal tools
    • Plastic bushing
    • 2 Face fixing clips
    • Operating and Installation Instructions
    • "Let's Connect" accessory brochure

    Features and Specs

    CEA-2006 Compliant No
    RMS Power Output 18 watts
    Peak Output 45 watts
    RMS Power Bandwidth N/A
    Preamp Outputs 5-channel
    Sub Preamp Outputs Yes
    Switchable Rear Preamp Outputs No
    Video Screen No
    Preamp Voltage 2 volts
    Display Color VarioColor
    Key Button Color Red
    EQ Bands 3
    Wireless Remote Yes
    Steering Wheel Control Compatible No
    Parts Warranty 1 Year
    Labor Warranty 1 Year
    AUX Input Front and Optional Rear
    Audio/video Input
    USB Input Optional
    Memory Card Slot No
    Bluetooth Compatible Optional
    Satellite Radio Ready No
    HD Radio No
    Navigation ---
    iPod Compatibility
    Full size ---
    Nano ---
    Touch ---
    Mini ---
    iPhone ---
    FM Sensitivity 17 dBf
    European Tuning Yes
    Seek/Scan Seek/Scan
    Radio Data System No

    Product Research

    External Device Controls


    Vario Color Display: Blaupunkt London MP37 features a Vario Color display. You can select one of 16 values of Red, Green, and Blue, giving you a possibility of 4096 colors. The Color Scan feature cycles through all the possible display colors in approximately 40 seconds, allowing you to choose the one you prefer.

    Variable Display Dimming Levels: You can independently set the dimming level for daytime and nighttime displays. Each display can be set between 1 (dim) and 9 (bright). The display switches from day to night levels when the vehicle's headlights are turned on. Note: The orange illumination wire in the power harness must be connected to the vehicle's headlight circuit in order for the display switching to take place.

    3-Band EQ: The unit features preset EQ sound effects for specific types of music. You can select the Rock, Pop, or Classic preset EQ setting. In addition, separate bass, middle, and treble adjustments can be made from -7 to +7, each with selectable center frequencies (Bass: 60Hz, 80Hz, 100Hz, 200Hz; Middle: 500Hz, 1kHz, 2kHz, 3kHz; Treble: 10kHz, 12kHz, 15kHz, 17kHz).

    X-Bass: The X-Bass feature can be used to boost the bass at low volume levels. You can set the X-Bass boost to one of three levels. The X-Bass feature, when activated,  is applied to all sources.

    Power-On Volume: You can choose the volume setting at which the receiver plays when it is turned on. In the menu, you can choose "Last Volume" and the unit will be set to the same volume level as when it was last turned off. The maximum "Last Volume" setting is 38. If you turned off the unit with the volume setting higher than 38, the unit will default to a turn-on volume of 38. You can also choose a default volume setting between minimum and maximum (0-66) Note: If the power-on volume is set to a high level, you can possibly damage your hearing or your audio equipment.

    Mute Level: You can set the mute level to a volume setting between minimum and maximum (0-66).

    Ignition Off Turn-On: The unit can be turned on manually even if the ignition is turned off. The receiver will stay on in this mode for approximately one hour and will automatically shut itself off to avoid running down the battery.

    Off Timer: After opening the control panel, the unit will switch off after a pre-selected time between 0 and 30 seconds.

    Travel Store: You can automatically store the strongest 6 AM and 6 FM station using the Travel Store function. These presets are stored in bands FMT and AM.

    Adjustable Scan Tuning: The scan feature briefly plays all the receivable stations. You can set the scanning time between 5 and 30 seconds. Note: When the radio scan time is changed, it also resets the CD intro scan time for the in-dash player and the connected CD changer.

    Shock Proof Memory: The CD player has a memory buffer of for CDs and MP3 discs to virtually eliminate skipping and drop outs, even on the roughest roads. Note: The number of seconds of electronic skip protection was not given.

    MP3/WMA Playback: The London MP37 can play MP3/WMA files recorded onto CD-Rs and CD-RWs. The format of the CD-R or CD-RW must be ISO9660 Level 1/Level 2 or Joliet. Each disc can have a maximum of 252 directories and 511 files, with up to 255 files in one directory. During MP3/WMA playback, you have 5 display options:

    • Track/File Number and Play Time
    • Track/File Number and Clock
    • Directory Number and Track/File Number
    • Directory Number and Clock
    • Directory Number and Play Time

    ID3 Tags: The unit will display MP3 ID3 tags. You can select to display the directory name, file name, artist name, song name, or album name when available.

    Telephone Mute: If the receiver is connected to a mobile telephone with an external mute circuit, the receiver's volume is muted whenever the mobile telephone is "picked up." The power wiring harness contains a telephone mute wire that must be connected to the phone's mute circuit in order for this feature to function.

    Subwoofer Output: In addition to the 4-channel preamp output harness, a separate mono (single channel) non-fading subwoofer output is provided on the power harness. You can control the subwoofer output level from 0 to 7, and the frequency of the low-pass filter can be set to 80Hz, 120Hz, 160Hz, or Off (no filtering).

    Auxiliary Input: The London MP37 is equipped with a 3.5mm stereo minijack auxiliary input on the front panel. You can connect an auxiliary input source, such as a portable MiniDisc/DVD/MP3 player. You can plug in a second auxiliary source by connecting an optional auxiliary input adapter (item number 023AUXIN1R) to the rear panel, instead of a CD changer.

    Remote Control: The London MP37 comes with a small 8-button remote control. The supplied remote has the following functions: Volume Up, Volume Down, Source Select, Mute, and Select Up/Dn/Left/Right. The unit cannot be turned on or off with the remote. Dimensions: W=1.375", L=2.223", D=0.27".

    Clock Display Note: In the menu, you can select the unit for "Clock On" or "Clock Off" operation. When set to "Clock On", the clock will continue to display and the buttons remain illuminated after the unit is turned off as long as the ignition is in the "On" or "Accessory" position. When set to "Clock Off", the display and button illumination is turned off when the unit is turned off.

    Clock Mode: You can set the clock display to 12-hour or 24-hour mode.

    External Device Controls

    iPod Ready: The receiver is compatible with the Blaupunkt iPod Aux Cable (item # 023IPODCBL). When the iPod cable is connected, the audio from the iPod can be played through the receiver. You will still need to control the iPod directly--the receiver cannot control the device. Note: When the iPod Aux Cable is in use, you cannot connect a CD changer to this unit.

    Bluetooth/USB Adapter Ready: With the optional Bluetooth/USB interface (023BLAUBLU), you can place and accept "hands free" cellular phone calls through this head unit. You can also play MP3 files stored on your Bluetooth cell phone. Up to 5 Bluetooth-capable phones can be registered to the adapter. In addition, the adapter has a USB input for plugging in portable digital audio players with USB outputs or USB storage devices.

    Changer Controls: This head unit can directly control the following Blaupunkt changers: CDC A 03, CDC A 08, and IDC A 09. During CD changer operation, you have 5 display options:

    • Track Number and Play Time
    • Track Number and Clock
    • CD Number and Track Number
    • CD Number and Clock
    • CD Number and Play Time

    Note: The IDC A 09 changer is only compatible with the London MP37 if it has not been previously connected to a 2002 or older Blaupunkt receiver. A code is set inside the IDC A 09 when it is connected to the older radio, making the changer incompatible with 2003 and newer receivers. The changer would need to be sent back to the manufacturer to reset the code in order to make it compatible again.

    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.

    Blaupunkt London MP37 Reviews

    Average Customer Review:

    14 reviews
    Review this product
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    Blaupunkt London MP37

    Written By cuz, pulaski,tn on Thursday, October 16, 2008

    Crutchfield Customer Review (What's this?)

    radio works great very user friendly

    Great price and sound 93 del sol

    Written By Michael, Milwaukee Wi on Wednesday, October 08, 2008

    Crutchfield Customer Review (What's this?)

    Fits perfect and factory gate still works and hides the radio...Radio EQ is nice too-

    Awesome Head Unit

    Written By Christiaan, Bourne, MA on Tuesday, September 16, 2008

    Crutchfield Customer Review (What's this?)

    I bought this stereo for my BMW 325is, in no small part due to the fact that it has such a large range of display colors. I'm trying to keep the interior of my car as clean and matched as possible, so being able to get the display color to exactly match the rest of the panel lights is important.

    After getting the stereo and installing it, I've discovered that the display color is icing on the cake for an all-around great unit. The front auxiliary port is perfect, and in my opinion much better than a dedicated iPod connection, because it allows you to easily hook up any device. The sound quality is great; I immediately noticed a difference as soon as I turned it on - and that's with the stock speakers. The controls are easy to use and self-explanatory, and the settings menu provides a number of useful features, such as a dimmer for the display when you turn on the headlights (and an adjustment for how much it should dim), adjusting how much the volume is lowered when you press Mute, and a number of other things.

    I'd recommend this head unit to anybody looking for a really great unit with features that they'd have to pay a lot more for in most other units.

    Great stereo

    Written By Aaron, Missouri on Friday, September 12, 2008

    Crutchfield Customer Review (What's this?)

    Recently received this stereo and it sounds great. Works well with factory speakers in a 24 year old truck! Everything sent was perfect for the truck. Took about 3 hours to install by myself (including modifying the dash to allow it to fit)! Highly recommended.

    Nice sounding unit

    Written By Richard, Bryan, Ohio on Friday, August 22, 2008

    Crutchfield Customer Review (What's this?)

    I just got this unit hooked up in my 1994 Ford Ranger Splash. It sounds great with my Infinity speakers. Adjustments are handy except the volume control can be a little hard to grip. Overall a good purchase and I would recommend it to anyone.

    Good for the $$$ spent

    Written By Sathish, Ossining, NY on Saturday, August 16, 2008

    Crutchfield Customer Review (What's this?)

    This player has got everything I needed, it is good in all ranges, Fast to start even on MP3, easy navigation.

    My kids love the change in colors we can do to the display and the cute little remote.

    Over all a good product for the money spent.


    Written By Lucas, Roxbury, NY on Monday, July 28, 2008

    Crutchfield Customer Review (What's this?)

    I bought this unit for my 97 Honda Accord and I love it. It puts out great sound and I was able to perfeclty match the display color to my dash lights. It is almost too much for my stock speakers to handle as they become distorted when i turn them up. It was easy to install, however if you are getting it and are looking to add a subwoofer you will need a two female to one male RCA adapter as there is only one RCA cable coming out of the back of the unit.

    Best features: Auxiliary input and price

    Written By Jim, Norfolk, VA on Thursday, May 08, 2008

    Crutchfield Customer Review (What's this?)

    I bought this receiver when my Aiwa died on me. I was specifically interested in two features: the auxiliary input (for iPod use) and the price. I don't like the faceplate as much as the one on my old Aiwa, but the receiver has functioned well otherwise -- mostly with AM listening and some aux use on long road trips. I don't listen to a lot of CDs anymore, so it took me a while to discover that they're not reading in my receiver. I will consult the owner's manual to see if this can be resolved, but even if it can't be, it's not a huge issue for me. I'll take the aux plug for this price any day.

    great reciever

    Written By collin, sanborn mn on Monday, May 05, 2008

    Crutchfield Customer Review (What's this?)

    This reciever is great, i have had very little problems with it. it worked flawlessly for the first couple months but now when i open the faceplate to take out a cd it shuts off but then turns back on again, nothing major just annoying because i have to turn it back up because it has the automatic volume when you shut it off so it always turns on quiet. that is one of my favorite options, it makes sure you dont send a huge surge to your speakers when you turn it on. This reciever has earpiercing treble, there are times when i have to go in and turn it down. the bass is great as long as you dont turn it up too loud because it becomes distorted which is expected with most cd players. i have a loud eshaust so some of the bass gets ate up by that but when i turn the car off and listen to it, it is amazing. sure the reception isn't all that great but with cd's and aux input why do we even need the radio. i would recomend this radio to anyone.

    Easy as can be

    Written By Richard, Portland, OR on Sunday, March 23, 2008

    Crutchfield Customer Review (What's this?)

    Easy install with the great stuff Crutchfield includes.
    I chose the London because it was a nice, basic stereo, with the AUX in front. I don't want my HU to control my iPod. I know the menus well enough, and I'd prefer to control my music through there.

    The London has great features and made my stock speakers sound much better they did with the stock stereo.
    Great purchase all around!

    Great Sound...

    Written By Gregg, Las Cruces, NM on Monday, February 25, 2008

    The sound and clarity are a huge improvement over the stock unit; the stock speakers sound even better. I was suprised that they were even able to handle this unit.

    However, the FM reception is lacking. Strangely, I can recieve stations from El Paso, Tx (which I was not able to do with the OE unit), but yet, some strong local stations fade when I go downhill into the valley, or if I go under a over-pass or am around buildings or am on a street with sound-dampening walls (whatever they're called.)

    The "VarioColor" display made it easy to match the interior lighting of my 97 Grand Am.

    At first, I wasn't sure if I'd like the chrome-colored faceplate, but am now pleased, becuase it stands out from the rest of the dash, and the Head Unit/reciever is supposed to be the center piece anyway! With the mounting kit, the unit sticks out from the dash a bit, but I prefer that anyway over the flush mount stock unit.

    I would have given this unit 5 stars, but the radio reception knocks it down a star.

    Blaupunkt London MP37

    Written By richker, Orlando Fl on Monday, December 17, 2007

    Crutchfield Customer Review (What's this?)

    The service is great! I placed my order and had the radio within 3 days. I live on Orlando, Florida so I expected 4-5 days shipping, but they got it to me very quickly.

    Most people fear the electrical wiring part of the install, but it was easy. I have a 1989 Mustang with the 6 speaker premium factory sound system. I was concerned about having all 6 speakers work, but that was not a problem. All 6 speakers work great! The Crutchfield supplied harness kit was very easy to use. The connectors have the wire function and polarity labels molded into the connector shell. Choose the correct connector from the kit to mate with the car's wiring. Then solder like colored wires together and cover the solder joints with heat shrink and you are done. Plug and play really does work.

    The mechanical part of the installation was a little more puzzling. The metal mounting shell supplied with the radio had many small cutout tabs. The instructions say to find tabs that when bent upwards, lock against the plastic adapter frame. None of the tabs did that, but I found four tabs that worked well once I had trimmed about 3/32" off the ends. Then I bent them upwards to lock against the plastic frame, and it locked the metal shell tightly in place.

    The radio's performance has been good so far. The reception fades if you are in a concrete and steel parking garage, but my stock radio did the same thing. The CD player really is skip proof. The suspension on the Mustang is very stiff, and the CD player hasn't skipped in spite of the harsh ride. Home burned CD's with the Widows Media Player format work without any problems.

    Terrible Radio Reception

    Written By Paul, Raleigh, NC on Monday, November 05, 2007

    Crutchfield Customer Review (What's this?)

    The London is a very attractive, easy to use, receiver. Unfortunately, the radio reception is lacking. It seems all the Blaupunkt receivers use a 17 dBf sensitive radio receiver, which even in a big city, picks up interference. For this reason, I had to exchange mine. Everything else about the London was spot on. The controls are easy to use and the AUX input worked great.

    Great features and performance at this price point

    Written By Jim, Schenectady, NY on Friday, May 11, 2007

    Crutchfield Customer Review (What's this?)

    The stock CD player in my 2002 Saturn SL2 was no longer reliably playing CDs, so it was time for an upgrade. My selection criteria included MP3 playback, included auxiliary input, and anti-shock memory in an under $200 unit. Only two manufacturers, Dual and Blaupunkt had units with anti-shock memory.

    I considered the Dual XDM7610 but decided on the London MP37 for it`s clean, uncluttered design and front panel auxiliary input. I also purchased 2 pairs of Vx662 speakers for the front doors and rear deck.

    I soldered the wiring harness connections to the receiver interfaces and covered the solder joints with heat shrink tubing, a job greatly simplified with the supplied diagram. When I was down to the last connection, the receiver`s "dimmer" wire, I had two choices on the harness: an "illumination" wire and a "dimmer" wire. A quick call to Crutchfield resolved the dilemma (it`s the "illumination" wire). Preparing the harness took about an hour.

    Installation was straightforward. The supplied instructions were very specific and accurate. The receiver did not initially fit snugly in the DIN sleeve, so I bent in some of the tabs slightly to help stabilize it.

    Saturn owners note: the recessed screws to remove the steering wheel cover are *very* recessed and difficult to access with a 7/32" socket. Find the smallest diameter socket or driver you can to make the job easier.

    Now for the important part: it sounds great! Very clean highs and mids with crisp, punchy bass. Some low-end distortion at very high volumes but anyone wanting it *that* loud should install a subwoofer.

    Get everything you’ll need to enjoy your new Blaupunkt London MP37

    Plug your favorite portable device directly to your receiver's aux input.
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