98 a4 stereo wiring
 

Alright fellas, im trying to install my amp and subwoofer into my 98 a4 w/ concert system.(its says bose and concert in the dash, booklet stays concert) i have a stock 6 disk changer in the trunk and no factory subwoofer. also, im trying to keep the stock headunit, but i have a sony if its not possible otherwize

Ive read around and i found a guy who had installed the same thing into the same car, yet the wires he defines in his guide dont correspond with the wires in my car.
http://www.audiworld.com/tech/elec29.shtml

i was wondering if anyone knew where to find the stereo wiring diagram for my car, or if you guys had some tips that would be helpfull also.

thanks

RE: 98 a4 stereo wiring
 

stereo wiring diagram is on top of the chassis of the stock HU.