Replacing the factory stereo with an aftermarket one because it is starting to fail.
Here you go. Be careful this can disable the truck in some models due to the radio system be tied into the factory anti theft system..
2009 Chevrolet Tahoe Stereo Wiring Diagram
Car Radio Battery Constant 12v+ Wire: Red/White
Car Radio Accessory Switched 12v+ Wire: The radio harness does not provide a switched power source. The accessory turn-on is controlled by the lan serial network. Run a wire to the fuse box or ignition switch harness.
Car Radio Ground Wire: Black
Car Radio Illumination Wire: N/A
Car Stereo Dimmer Wire: The radio harness does not provide a dimmer wire. The dimmer wire is controlled by the lan serial network.
Car Stereo Antenna Trigger Wire: The radio harness does not provide a antenna trigger wire. The antenna trigger wire is controlled by the lan serial network.
Car Stereo Amp Trigger Wire: The radio harness does not provide a amp turn on wire. The amplifier turn on is controlled by the lan serial network.
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue
SOURCE: 2004 Chevy Tahoe stereo wiring diagram
BLACK-ground
RED-accessorie
YELLOW-power 12v
PURPLE-left rear
GREEN-right rear
WHITE-left front
GREY-right front
BLUE-REMOTE
and the other blue one is for remote antenna..
SOURCE: 2002 CHEVY BLAZER
Can purchased an adapter kit at Best Buy or Circuit City that is color cordinated with the factory wires for about 12.00. This will go right into the factory plug.
Radio 12v orange + radio harness
Radio Ground black - radio harness
Radio Ignition dk. green + radio harness
Radio Illumination gray (dimmer) + radio harness
Factory Amp Turn-on N/A
Power Antenna N/A
LF Speaker +/- tan - gray +,- radio harness
RF Speaker +/- lt. green - dk. green +,- radio harness
LR Speaker +/- brown - yellow +,- radio harness
RR Speaker +/- dk. blue - lt. blue +,- radio harness
Immobilizer Bypass Module: Required: Yes Type: Passlock 2 Part #: 457G, 555L, or 555T
Notes: The Passlock 2 wire colors are yellow, orange/black, and red/white (not used).
SOURCE: 03 Chevy Cavalier Replace Factory Stereo
I am currently in the process of putting in a new stereo in my 03 cavalier. It's actually quite a process but can be done with some patience. I really don't have the time for a highly detailed explanation but here is the outline. First pull the airbag fuse just in case, you'll see why. The dashboard will have to come out first. It all starts with the screw located inside the drivers side fuse box area. This will allow the dashboard to be gently pryed up and popped out, there are just clips holding. Keep an eye out for areas that are not coming up easily, there will probably be screws to take care of. (There are some in the glove box.) From here it's pretty self explanatory. The trim around the stereo must come out. Then the stereo. Not too difficult. You'll need a warning chime replacement harness. I used SCHOSHE #GMLAN2SR. You'll probably need a dash install kit depending on the size stereo you go with. You'll also need to wire the stereo to a switched source of power(12V ignition, orange). Have fun...
SOURCE: need a wiring diagram for 2002 chev, caviler
ARE YOU AWARE THEY MAKE A VERY INEXPENSIVE ADAPTER HARNESS THAT HOOKS UP TO THE FACTORY HARNESS, NO WIRE CUTING,CAR AUDIO SHOP CAN GET THE ONE U NEED, ABOUT $12. HERE IS THE WIRING COLOR BREAKDOWN OF THE DASH HARNESS.
2002 Chevrolet Cavalier Car Stereo Radio Wiring Diagram
Car Radio Constant 12v+ Wire: Orange
Car Radio Switched 12v+ Wire: Ignition Switch (The radio harness does not provide a switched power source. Run a wire from the Ignition Switch.)
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger: Pink
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Front Speakers Size: N/A
Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Rear Speakers Size: N/A
Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue
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