Radio Problem? Radio was working fine, suddenly stopped working with only low noise coming out of driver dash speaker. Removed speaker from right passeger side and tested it and works fine. Been told possibly factory amplifier went bad. How can I test amp without removing and how do I remove if found bad?

you found the right place right time buddy.. i know a lot of websites for repairs and manuals that can really help u..

Audio Item Wire Color Polarity Wire Location Radio 12V red/white + radio, black 14 pin plug, pin 1 Radio Ground black/white - radio, black 14 pin plug, pin 8 Radio Ignition (low speed GMLAN) Radio Illumination yellow (dimmer) + radio, black 14 pin plug, pin 7 Left Front Speaker (+/-) dk. blue - lt. blue +,- radio, black 14 pin plug, pins 2 - 9 Right Front Speaker (+/-) orange - dk. green +,- radio, black 14 pin plug, pins 3 - 10 Left Rear Speaker (+/-) tan - white +,- radio, purple 16 pin plug, pins 5 - 13 Right Rear Speaker (+/-) tan - orange +,- radio, purple 16 pin plug, pins 6 - 14 Satellite Radio 12 Volts red/white + Digital Radio under driv dash, 16 pin plug, pin 16 Satellite Radio Ground black/white - Digital Radio under driv dash, 16 pin plug, pin 9 Satellite Radio Ignition (low speed GMLAN) Satellite Radio Antenna (coaxial cable) Satellite Audio Left (+/-) brown/white - tan/white +,- Digital Radio, 16 pin plug, pins 2 and 1 Satellite Audio Right (+/-) dk. green/white - gray +,- Digital Radio, 16 pin plug, pins 3 and 4 2016 Chevrolet Express Van Wiring

If the radio is turning on but no sound.

!. The wires behind the radio for the speakers are lose
2. If they are on a wire harness make sure the wire harness is plugged in right. " you might have to unplug and re-plug it back in
3. The best way to check you speakers is use a 9v battery. Un Plug them from behind the radio touch the positive side of the battery. You should get a little noise.
4. If you have a electrical meter you can check each of the wires coming out of the radio make sure you have it on the DC volts to check everything. " making sure you have power coming out of each speaker wire from the radio." Hope this helps out

do you have halogen or hid lights sounds like a ballast or ground issue more info!!

Here is a list of radio wiring harness wire color codes and what they do. I have given both with and W/O Bose.

Nissan Maxima Car Stereo Radio Wiring Diagram Radio Constant 12V+ Wire: Pink/Blue
Radio Ignition Switched 12V+ Wire: Blue/Black
Radio Ground Wire: Vehicle Chassis
Radio Illumination Wire: Red/Blue
Radio Dimmer Wire: Red/Orange
Radio Antenna Trigger Wire: Black/Red
Front Speakers Location: Doors
Left Front Speaker Wire (+): Blue/White
Left Front Speaker Wire (-): Blue/Yellow
Right Front Speaker Wire (+): Brown
Right Front Speaker Wire (-): Brown/White
Rear Speakers Location: Rear Deck
Left Rear Speaker Wire (+): Red
Left Rear Speaker Wire (-): Green
Right Rear Speaker Wire (+): Blue
Right Rear Speaker Wire (-): Pink
1997 Nissan Maxima with Bose Stereo Wiring Diagram W/Bose
Car Radio Battery Constant 12v+ Wire: Pink/Blue
Car Radio Accessory Switched 12v+ Wire: Blue
Car Radio Ground Wire: Chassis
Car Radio Illumination Wire: Red/Blue
Car Stereo Dimmer Wire: Red/Yellow
Car Stereo Antenna Trigger Wire: Black/Red
Car Stereo Amp Trigger Wire: Green/White
Car Stereo Amplifier Location: Each speaker has its own amplifier located at each speaker.
Left Front Speaker Positive Wire (+): Yellow
Left Front Speaker Negative Wire (-): Brown
Right Front Speaker Positive Wire (+): Violet
Right Front Speaker Negative Wire (-): Light Green
Left Rear Speaker Positive Wire (+): Red
Left Rear Speaker Negative Wire (-): Green
Right Rear Speaker Positive Wire (+): Pink
Right Rear Speaker Negative Wire (-): Blue

this vehicle will require a new cd/radio. the mother board that controls the cd/radio is burnt out

2004 GMC Envoy rear speakers suddenly stopped working? Does anyone know of a resolution?

sounds like you have a short, one of the wires may have come loose and has grounded out. You'll have to use a process of elimination to find it.

when mine stopped working,the right speaker, i removed the door panels then swapped the speakers. and still the right speaker didnt work. so i got a radio from a junkyard and installed it. and now all speakers work fine.

The door buzzer chime is on the fuse box cover over the clutch/brake pedal. Trust me, you will enjoy not having it, i removed mine. As far as the radio...on my contour, there is a inline dash amplifier beneath the dash. If you have an aftermarket radio, i would pull the radio out and check the connections. A Haynes Manual #36006 has proven to be very useful with the wiring schematics. Good luck..98contourSVT