I have a 2002 Chrysler Sebring Couple LXi with the infinity4 disc cd changer....i am told it has an amp but cannot find it at all. I'm trying to find where the wires are ran to the back speakers so i can tap into them with ahigh-low frequency change so i can run it to RCA cables. Does anyone know where the amp is located or the easiest way to get access to the speaker wires?