I have a 2000 Audi TT with a Bose sound system (stock). I just recently bought a subwoofer and a new head unit. However when I was hooking up the head unit I ran into trouble. I couldn't seem to find the wiring for the door speakers (front and back). However i may just have the colors mixed up. Could someone please help me out and find me a speaker wiring color guide or are the speaker wires not ran through the head unit?