does anyone know how to connect an amp to a stock gm head-unit?
A friend of mine wants to subs but doesnt want to change the head-unit from stock. Im at a total loss as I dont know a lot about stock units. I know it would be the same except for the amp sending wire...where would I connect that?

yes I know this "should" be in audio...but its not honda...its crappy GM...fool...
