Hey guys, I'm about to go off to college and I can no longer use my backseats for subs. I drive an F150 2001 4door supercrew and I'm looking for a sub that can go under my backseat. I'm just looking for a single 10" or 12". My amp is an alpine m500. any suggestions for the sub? As far as my budget goes id like to keep it under 300$ for the sub and box.