More on Amazon.com : http://www.amazon.com/gp/product/B0013MWT44?tag=purrfectcatdi-20
Atrend A151-12Cp B Box Series 12-Inch Single Down-Fire Subwoofer Boxes
Fits 1999-2007 GM Extended Cabs - Custom Under Rear Seat Application
MDF Construction with Glued and Braced Assembly
Premium Carpeted Finish with Rounded Edges
093 Cu Ft Air Space per Sub
725-Inch Mounting Depth
Fits 1999 and Up GM Extended Cab Ultra Deep
