MTX makes a box that goes under the rear seat that holds 2 10" subwoofers. It replaces the tool tray and is not visible. I would get the box without the crappy MTX woofers and buy better ones. I use Diamond's in mine and works nice. If you are looking for serious bass, you will have to get a box made to take the place of the rear seat. I had one made and it sounded awsome but I had to put my rear seat back in for a baby seat so I went for the MTX box.