mckay76

i have recently changed out my stock speakers which at first worked fine. then a few days later i changed the head unit now the rear speakers dont work. any suggestions on what the problem may be? i have a 99 a4 without bose.

MacSub

You need to run new speaker cable from the HU to the rears, or try an adapter which will provide standard RCA's from the Audi loom. I would rewire the rears and by pass the Audi amp as you'll have more power/quality from the HU than the puny amp, and also people have had no end of interference problems using the adapters as the lo level Audi wiring is really naff.