8\'s in the side panels? i'm picking up 4 - Resonant Engineering RE8 8" subs and a JBL 600.1 mono amp. i was thinking about putting either 2 subs on each side behind the front seats in the side panels, OR, one sub and one of my 6x9's on each side in the side panels behind the front seats, and the other 2 in the very back side panels. has anybody put 8's in the side panels? i will be building small boxes for them and incorporating them into the panels of course.