Todedgeonline.com has a dual 12" sub enclosure that fits under the rear seat of a 99 and up Chevy 1500 extended cab pickup. The box aims out from the seat towards the front instead of down or up. It is made by Audio Dynamics Design. it is made of 5/8" MDF. It looks really good and will work for what I want it to but I want to know if anyone has ever used one of these boxes or a box made by this company and how they stand up and if they are worth spending the money on. Granted it is much cheaper than the box I was going to do at proboxrocks.com but I was curious if it was a good one to go with.