not tryin to be a dick but good luck prob wont happen you might be able to build a box that is loud but getting spl out of a standard cab s-10 is almost impossable without booting it to the bed of the truck known from others experiences
something to try.. place your subs facing the floor aprox the height of the high area aginst the back cab approx 4 or 5 inches it will give you window rattling bass esp when windows are cracked half way i currently have this set up in my ext cab s-10 it pounds