I just finished my interior and stereo install. Dynamatted both sides of the doors and the floor. I made some boxes for under the driver and passenger side, recessed, so the seat springs can't hit them even under excursion. In the second sub pick you can see my prototype box, which sounds a bit better but you can feel the seat "stop" on the grill piece when you sit down. The amp sits under the seat on the raised tranny tunnel piece. It is a tight fit but under there, but it can work/fit. It sure does sound good for only spending around $650, and the butt vibrations are great!
Kenwood KDC-X493
Polk db 5-1/4's in dash crossed at 100hz powered by h/u
MB Quart DSC480
Polk MM 6x9's in doors full range, powered by dsc480
Polk db 8's in custom boxes crossed at 120hz, powered by dsc480
