my brother and cuz do the bad ass custom fiberglass boxes they put four 10s under my back seat 05 ext cab let me know send me your number ill send you pictures im in schertz but in san antonio everyday can swing by see what u want and go from their they put two 15s in two single cabs 2 10s and 2 12s in a 94 chevy extcab my brother got 3 12s in a tahoe limited they done lots of boxes let me know if u wanna see some of the work prices are vary reasonable and better then fleamarket junk