Nothing amazing yet. Just have a JVC KD-SC500 HU,which any day now is being replaced with a brand new Sony CDXF5770 deck. I am running a pair of Pioneer TS-A6870R 220w 3-way 6x8s up front,with a 222w Sony Xplod amp on them. I have a pair of Kenwood KFC6959ie 200w 2-way 6x9s in the rear,just running from the deck,but the rear is only fill sound,so it's no big deal. All the fun is in the trunk,with a 15" Kicker Impulse 8ohm subwoofer in a sealed Bassworx box,and a 1200w Power Acoustik Fire & Ice amp. The bass from this set up is absolutely incredible. If it gets any louder,it will make my ears bleed. It wants to blow my windows out and send my trunk lid flying. The spare tire has been removed,but the jack and everything else remains. The cheapo piece of wood that used to just sit there and cover the spare tire has now been screwed down to the floor,and a 1/2" thick piece of plywood wider than the spare wheel well is set over top of ot,with the amp screwed to it. The carpet is cut out to allow the amp to be screwed down,without seeint it mounted,and basically looks like the amp is popping out of the carpet. The Xplod amp is mounted on the left hand side of the trunk,just screwed imto the side carpet,and I haven't had any problems yet to date with it falling off or anything. All the wiring is run under the carpeting as well,for a sleek,clean look.
Sorry the pics are small and suck.