Can someone help!! Wiring harness Problems 2002 malibu..

[DJSlowfets]

Hey guys im getting really frustrated I don't know why gm is making it so hard but there is not a wire harness available for a 2002 Malibu the only that are available are like 120 bucks some for 50 but bad reviews I don't care even it is 50 im not paying 50 dollars for 12 hair thick strands of copper I refuse will someone tell me a harness that will work for this car!!! I don't care about the door chimes or anything I do not care! anyway to hillbilly rig it?? all I want is bass and gm is fighting back.. Picture of harness I bought at walmart just to see if they had same color wire of course I bring it home and there not the same color but does that mean it still wont work ? anyway also a picture below will show you the color codes for the 2002 Malibu oem harness someone HELP PLEASE! so irritating having a system that is literally sitting there collecting dust

The harness shown in the picture has a

solid green wire along with a green wire with black lines

solid yellow wire

solid purple wire along with purple and black lines

orange solid wire

red solid wire

baby blue solid wire

black solid wire

gray solid along with gray and black lines

solid white along with white and black lines

in the wiring diagram picture it says brown which I don't have..so many questions any help is so appreciated honestly from day 1 my luck has not been the greatest.......... but who knows.. the wiring diagram picture might not be correct who ever wrote that might of been an idiot I don't know..

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[sthib 10+ year member]

Not getting a harness made for the vehicle might cause stuff like the radio not to turn off when car is shut off or the stock system to not even work. I tried it in my silverado and ran into problem trying to rig it. It's even more important if you have the gm Bose system in the car.

 

[Hunter0811 10+ year member]

The only colors meant to match are the ones in the aftermarket harness, to the wiring on your radio harness. The vehicle side WILL be different. Theoretically speaking you could just run the switched power of your radio (red) to a fused 12v source that is only on when the vehicle is on. Aside from that, you only need the primary wiring. Constant 12v (yellow), ground (black), and speaker wiring. There are a number of losses when doing that depending on which GM you have. Anything from warning chimes/indicators, Onstar, signal level control for amplified systems, etc. Honestly if you don't know anything about all of that, it's worth purchasing the correct harness once. The GM radio turned on through data, that module/harness reads that data system and generates switched power through a relay.

 

[Hunter0811 10+ year member]

The only colors meant to match are the ones in the aftermarket harness, to the wiring on your radio harness. The vehicle side WILL be different. Theoretically speaking you could just run the switched power of your radio (red) to a fused 12v source that is only on when the vehicle is on. Aside from that, you only need the primary wiring. Constant 12v (yellow), ground (black), and speaker wiring. There are a number of losses when doing that depending on which GM you have. Anything from warning chimes/indicators, Onstar, signal level control for amplified systems, etc. Honestly if you don't know anything about all of that, it's worth purchasing the correct harness once. The GM radio turned on through data, that module/harness reads that data system and generates switched power through a relay.

 

[Side Show 10+ year member]

spend the money, or ask som1 todo it for you. or you will end up stuffing/cooking/blowing something up and it'll cost well over the $50

 

[keep_hope_alive Premium Member]

like it or not, you need the GMOS-1 or GMOS-4 adapter, as i've already explained. if you want someone to tell you how to bypass safety chimes you can look elsewhere for answers.

welcome to car audio - GM *****.