Speaker wiring -- 1999.5 A4 Avant

[Michael McLaughlin]

I'm in the midst of installing an amplifier in my 1999.5 A4 Avant  
(non-Bose) and need some help tapping into the wiring for the rear  
speakers. I've taken out the "tupperware" subwoofer/amplifier out of  
the back and plan on tapping into the wiring harness that plugged  
into it so I can avoid having to run new speaker wire to the speakers  
in the rear doors. Does anyone have a diagram of which wire is what  
in that harness?

Thanks,
Mike