Just picked up an 96 Audi a4 2.8 last week and and installing a system this week...problem is that it came with an aftermarket cd player but when i opened it out who ever did this just used the existing wire harness not the aftermarket one that i bought so make it easier for me to install.

After 2 days i still cant get the front passenger and both the rear speakers to work just the front so can anybody tell me which color is which for the stock harness into the aftermarket plug/play harness...gladly appreacite the help

 

i know, this is big, but, hope it helps,
its for the non-bose system

 

I had the same problem man... But i was too lazy to figure out which wires powered the back. So i ran new wires from the front to the rear. It was pretty easy so if you cant figure out which wires power the back, just run new wires. costs about $15-$20 for the wire.

 

dammmmmmm.....thx for that zrwhat...but would it be possible to jst tell which which wires is which in color code ...i have no idea what to look for in that diagram too confusing