View Full Version : Wiring in new Head Unit with Harness HELP!!

10-10-2006, 12:21 PM
Ok, so I bought a new head unit, to replace the bose one that just randomly stopped working, anyways, I have the universal harness that came with my deck, I have this problem, I have the following wires on my new harness, I just need some help plugging them into the stock harness.

New Harness Wires:

-Rear Speaker Left (+)
-Rear Speaker Left (-)
-Rear Speaker Right (+)
-Rear Speaker Right (-)
-Front Speaker Left (+)
-Front Speaker Left (-)
-Front Speaker Right (+)
-Front Speaker Right (-)

Now heres the tricky part, where do those wires go into the existing harnesses... heres the harness diagram that was found on top of my stock bose stereo....

-(logo of wire on a switch thing)

Now those are on the sticker diagram on top of the concert bose stereo... My question is, can anyone match up which ones I need to run the new harness wires too, thanks.

10-10-2006, 12:40 PM
Anyone.... if I were to buy one of those AUDI A4 WIRING HARNESSES OFF EBAY, would that make it plug'n play or is there anything else I would need to do? I have the stock speakers in the rear if that matters...?

10-10-2006, 01:04 PM
the harness is the way to go, but i lost my rears cause i could not find a harness that would bypass the amp that are built into the rear speakers,. i have a 2000 a4. u will also need an antenna adaptor.. u can always run wire from the rear speakers to the front. i have a 4 channel amp running all the door speakers so its not an issue for me. good luck

10-10-2006, 02:49 PM
Nevermind, I just ran everything, such as Power, ACC and ground over to the fuse box.... works just fine, now I just need to run new wiring to the rear speakers to bypass the amp.