Ah yes, the problem with putting subs in a truck. Behind the seat would be nice, but that is where I keep my safety/recovery equipment. Under the rear seat only provides a few inches of clearance, and with no center console on front, not much to work with there either. However, since an F250 has such huge doors, what if I mounted a pair of 8s or 6s in/on the door? If I could box it correctly (possibly use a shallow mount sub), I feel like it might work. Has anyone heard of anything so crazy or have any gut feelings on the idea?