Question about Sony CDX-M770 CD Player

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Speaker issues Ok I hooked up this stereo and everything was fine until I put in a CD and then it only played out of two speakers went back to radio all 4 worked cd only gets two i am at a loss.

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Brian Neathery

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Disconnect whatever wire is connected to the blue wire behind your head unit. Re-connect it to the blue/white wire, instead.

Posted on Jun 21, 2007

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New Alpine radio, went through setup, plays fine on radio/tuner on all four speakers, but ipod (USB port) or internal CD only plays on front speakers.


Just a thought - the usb provides a digital signal which carries information about how the signal is to be processed; mono, stereo, surround sound stereo, etc.
If the mp3 music file was only recorded in 2 speaker stereo perhaps that is how it plays back.

Admittedly the radio signal is stereo and yet it plays on four speakers but unless it is a DAB radio it is analogue and maybe that makes a difference.

Perhaps there is an internal electronic fault with the digital processing part of the unit. I suggest reading the handbook again and then perhaps contacting the seller.

Mar 28, 2016 | Alpine Car Audio & Video

1 Answer

My JVC stereo doesn't play cd's anymore, still runs audio for tv, and radio. What is best, low price stereo option i can hook speakers up to and play cd's again?


The CD player might just need it's lens cleaning. Best way to do this is taking the top off and cleaning the lens with either Servisol Video 40 or CD lens cleaning fluid.

Mar 03, 2013 | JVC MXKB30 300W 3-Disc CD Shelf System...

2 Answers

I just hook up an after market cd player up in my 2001 chrysler 300m and the radio play but the cd player want play, it turns on and everything just no sound. do anyone have any ideas of what i did wrong?


DOES THE RADIO PLAY? HERE ARE THE FACTORY WIRING COLORS FOR THE RADIO HARNESS, RECHECK YOUR WORK. IF U FIND NOTHING THEN IF THE RADIO PLAYS THE CD PLAYER IS DEFECTIVE, IT HAPPENS BELIEVE ME.

2001 Chrysler 300M Car Stereo Wiring Diagram
Car Radio Battery Constant 12v+ Wire: Pink
Car Radio Accessory Switched 12v+ Wire: Red/White
Car Radio Ground Wire: Chassis or Strap
Car Radio Illumination Wire: N/A
Car Stereo Dimmer Wire: Orange
Car Stereo Antenna Trigger Wire: Orange/Red
Car Stereo Cell Phone Mute Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: Located under the rear deck in the trunk.
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Dark Green
Left Front Speaker Negative Wire (-): Brown/Red
Right Front Speaker Positive Wire (+): Violet
Right Front Speaker Negative Wire (-): Dark Blue/Red
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown/Yellow
Left Rear Speaker Negative Wire (-): Brown/Light Blue
Right Rear Speaker Positive Wire (+): Dark Blue/White
Right Rear Speaker Negative Wire (-): Dark Blue/Orange

Nov 05, 2009 | 2000 Chrysler 300M

1 Answer

Only door speakers have sound on the cd mode


the amp requires a 12 volt power constant, and a 12 volt "on" signal. you prolly have the 12 v "on" hooked up to the car stereo's antennae remote, meaning your amp gets power when the radio is on, cuase the radio is sending a signal to the amp (thinking that it is sending a signal to the antennae to raise)

you do have one of those collapsable antennas, right?

Mar 12, 2009 | Clarion VRX745VD Car DVD Player

1 Answer

No sound from cd but stereo works no problem


there are 2 blue wires........dont hook the blue to blue!!!!!!!!!!!!!!!!!!!!!! hook blue to the blue/white wire!!!!!!!!!!! problem solved. so e-z huh? lol i did the same thing.

Feb 16, 2009 | Sony CDX-CA700X CD Player

1 Answer

Problems with amp or stereo


check out www.installer.com
this site has your stereo's wire diagram.

The amp wires only go to the rear output (rca jacks on back of cd player)
It wont work right if it is connected to the front outputs on the back of cd player

Jan 16, 2009 | Alpine CDA-9856 CD Player

1 Answer

Nakamichi TA-4A receiver no sound


HAI,AMP WORKS FINE , CONNACT ANY OTHER TO AMP(CD,DVD,COMPUTER,MOBILE,TV) IN BACKSIDE INAUDIO OR PRE_AMP .THEN SELECT  PLAYER TO IN MODE YOU HAVE INSAERTED.THE SOUND IS OK

Jun 26, 2008 | Nakamichi AV-10 Receiver

1 Answer

Plays radio not cds


You may have Power antenna and amp remote turn on wires switched. Your system may be looking for turn on signal from radio and only gets it when am or fm is on because power antenna wire is hooked up instead of amp turn on signal.

Jan 18, 2008 | Kenwood Sirius KDC-MP522 CD Player

1 Answer

CD won't work


Have you tried using the reset button on the front of the unit (under the face panel)

Jan 13, 2008 | Sony CDX-L400X CD Player

1 Answer

Works fine through 4 chnl. amp on radio until you switch to cd then rear speakers turn off


You have the amp hooked to the "Antenna turn on" which is the blue wire.... you need to hook it to the "REM" output whis is Blue with a white stripe.

Sep 04, 2007 | Alpine CDA-9857 CD Player

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