I have a 04' gt with the mach system and I have been tryin to hook up some subwoofers in the back. My only problem is the subs are getting signal, but they aren't getting any power. There is a line level converter hooked up from when I bought the car, so I figured that was good, but that is the only reason i can think of for my problem. Does anyone know exactly what wires to hook the converter to and where?