When I ordered my sound equipment for my truck, I thought I would go with a Memphis loaded 12" sub. While it sounds good, it doesn't fit behind my rear seat like I thought it would. I'm going to have to go another route. My desire if for a box that will fit behind my rear seat and hold 1 12" sub. It would be nice if the box had an amp rack. I have no desire to build a box if I can find something that just drops right in. I was looking for a bracket set that would allow me to move the rear seat forward, but none exist and making something is beyond my capability. Who is running such a setup and can give me some direction?