the most work i've ever done on a stereo is change the headunit. And that was rather simple. I need to add a sub and amp into my 85 but haven't the SLIGHTEST idea what to do. Anybody know of a website or something so i don't have to go pay 75$ to get it done. I know the harness has a blue wire that i can attach an amp to, so i know i gotta connect something there, but that's about all i know.