Hey guys I'm looking for a sub box like this or similar http://www.audioenhancers.com/vehicl...ic/fst240p.php! it wont let me order this box from them. Post a link if u know any others please im having a hard time finding one! Has to fit behind the seats in a single cab. Im looking for something I can fit a Single Kicker CVX 12" in. Or if I were to build something like the link I posted how much do u think I would spend on the materials(mdf, glue, carpet, nails)?