If I just run a pair of 12" subs, what kind of box(s) could I use that won't take up much room ???? I kinda like the idea of them being part of the side panels in the back neer the tailgate. Maybe some weage style comeing over the wheel wells on each side up against the back of the rear seat fireing the subs at a angle. (Both pointed at the center of the tail gate) Do you think that would sound okay ????