bmw 3 series coupewhat kind of car?
my backseats can already be folded downWell at least the battery is in the trunk so you wont have to worry about running the power wire for the amp. I have a buddy with an 02 328i and we have been trying to come up with a simple design. The best we could come up with was finding a backseat that folded down and swapping it in then punching out the sheetmetal barrier between the cabin and trunk. The metal there is stamped and looks like it was meant to be removed.