I have a 2005 Chrysler Sebring that I put an audio system in. The system consists of a Kenwood 1800w class D mono amp (model KAC-9105D), two 12" Kenwood subs [1200w peak power, 400w RMS power] (model KFC-W3012), and a Kenwood cd-receiver (model KDC-MP345U). I would like to get a capacitor but...