I have a 1200 watt 2 to 8 Ohm 2 channel amp and 2 12in 4 Ohm 400 watt RMS subs hooked up to it. When the bass hits, my head unit turns off or if it stays on , my speakers inside my car cut out and subs continue to hit. I have my amp hooked up with 680 watt max wiring kit. I don't know much about car audio , so can somebody help me out to improve everything ?