I have bought 3 different hiring harnesses, the one best buy sold me wont even fit, the other ones fit but my radio wont turn on. What brand, model number, and where did you get yours?

 

Scosche GM13B (2005 Cobalt)

 

isnt there anything besides that

 

Did you run the power wire?

 

Did you run the red wire to your fuse box? Also do you have an 05-06 or an 07?

 

wires were matched up to the to the harnesses. how can i make one of the fitting harnesses work

 

You could try reading our questions

 

sorry 06 nothing was run to the fuse box or power supply. my next door neighbor knows a lot about car audio, he told me just to match up wires on the harnesses that is what i did. i matched the colors

 

I had my buddy install it. I'm not messing around with GM's crazy wiring.

 

the yellow power wire was connected to the yellow power wire
the black ground wire was connected to the black ground wire
and the red signal wire was connected to the red signal wire

 

You know what I mean. Late-model GM cars have some craptastic wiring. The harness is a bitch, some areas are too tight, and some wires are not where they usually are in other cars. Technicians do not like GM cars.

 

The red wire is the ACC wire, it needs to be tapped to something that is only powered on by accessory (this way the head unit knows when to be on and when to be off) You can use a fuse tap and tap the sunroof or an empty fuse in the box. Until you do this, your head unit wont work and or will drain your battery till its dead.

 

i am re-pinning my harness
which wires go in the slots