ok, i have an idea for a box that i got from a dude on soun domain... i have a 97 dodge ram truck, standard cab, so there's not much room for speakers... im putting two tens behind my seat... my question involves a third ten inch sub... i want to mount it under the center seat... this dude had it on sound domain, but there wasnt much detail of how to do it... neone help? i dont have the third sub yet, so just give me ideas of how to do it for now...