Hi guys

Ive just recently installed my ICE and ive got interfearance, Ive put in my DVD Headunit (Pioneer 5700dvd) 2x12" Inphase Sub Woofers and a Inphase 2400watts amp.

For some reason ive got interfearance on the car but its definately not the earth wire on the amp as its not going up and down as u accelorate. Ive noticed that when i swith the headlights on i get more interfearance and at the same time im not getting the thumping bass just feels really weak.

Does anybody know what this may be or has anybody had this problem ever before?