I am currently planning my Pontiac G8 Audio Upgrade. Door speakers with two sets of Polk Audio db651s. I have purchased an MTX re-Q5 processor. The Alpine 3553 4 x 35 will power the door speakers and the PPI PC275 2 x 75 will power the new Bazooka BT6024DVC passive sub which has a dual voice coil. I am mounting the amps and processor to the underside of the rear deck in the trunk. Including the processor and sub all I needed to purchase was some speaker wire, 3 short RCA cables, shrink tubing, screws and terminals all for around $300.00. I will include pictures during the install process.