I have a brand new JL Audio custom sub box made especially for 2004-up Ford F-150 Supercrew. Absolutely nothing is wrong with it, I bought it and decided to trade my truck in and get an SUV instead. It is covered in the flint grey carpet. I paid $550 for it brand new and will let it go for $300 plus shipping
http://mobile.jlaudio.com/products_stealthbox_detail.php?fit_id=1512