heres what i built, sounds pretty good, i need a bigger amp
the sound is a litte central in the truck, but with a couple 6x9 speaks in the doors it should sound great ..
not bad for about 400 bucks total.
the box I built myself in shop class, and upholstered it with my grandpa. it sits directly under where the radio is under the dash, and extends all the way under the seat.