Ok Im getting closer to dumping my 2 walmart xplod 12's and getting 1 12 inch Solo Baric L7... The mounting depth is 6 13/16" I am going to make one large box that fills up behind my seats... I will also have to make a spot to mount both my my amps because they wont fit on the seat. Is this possible without losing alot of legroom? Any ideas on a box?