NEW DEEP SUB BOX 2002-2015 DODGE RAM QUAD CREW DUAL SUB BOX Air space = .75 cu ft per sub. Mounting depth for 12 inch subs = 5.5 inches. Mounting depth for 8s and 10s = 6 inches Seat folds down onto the box without loss of function. If your truck has the storage tray underneath the rear seat, it will have to be removed in order for the box to hang down into the cargo area. The subwoofers' magnets hang down into the cargo area and fire up into the seat. Charcoal Grey Carpet. Speaker box terminals included, Constructed with furniture grade MDF wood. Spacers are included for lift kit