I have a 2004 gmc sierra ext cab and I want to build a box for 2 12s, does anyone have some dimensions for a good box and some pics I could go by. Thanks Mike.
2 12's require alot of air space. hope you dont plan on using the back seat... i have to 10's under my back seat in a prefabed box i bought from a local car audio store. sounds fantastic and i can still ride 4 peoiple no problem...