Speedy, Is Right, Somwhere in your system, you have a blown voice coil, were the +, and -, Leads may be touching, this causes the deck to short out everything but the subs, which are running off audio RCA preouts. I sell Alot of Those Shity Decks, People Buy Them because of the way they look, pretty stupid if you ask me. Besides allllllll the tiny mechanical pieces in a Kam. are made of (PLASTIC)!!!!!!!!!,,,,, Thats Just bound to **** out on you Do to the Heat or extreem weather conditions!