i'm always cleaning that car haha. and the one exception dad made with me was that it all can be taken out to carry cargo. the amp's on the back of the back seat and the subs are held down with cargo bunjies. i mounted the amp on the original cardboard that had pockets on it.
Ah mine is mounted on the left. I see you did yours about in the middle, good decision.I mounted mine too low and I had to replace my rca cables because the seat bent em down and they shorted out after about a year