I havent had any mids or highs in the rear of my vehicle in years. Got so used to it from MECA that i never install anything in rear deck anymore. As far as subs in the deck it depends what you are looking for. If your looking to wake your neighbors aint gonna happen that way. As for SQ that is the perfect setup if done correctly. size/shape/style of the sub all come into play here. The #1 car in SQ 05 season used 4 8's in the rear deck. sounded amazing obviously since he won world finals. pretty sure it was pioneer HU, Diamond components and believe it or not Bose 8's for the rear deck. Anyways this is just my .02. Have fun
