I designed this box on another forum, for car audio, I have a 15" RE audio *** subwoofer in a box I calculated and designed with the help of some software and very experienced installers, I drew it up in Google SketchUp with the exact angles I got off of my rear seat in my '96 Extended Cab, The front of the box is fit to how I set my back seat and the whole thing takes up 2/3 of the bench, but sits beneath the window line.
Click the images for a larger view.
You must be registered for see images attach
Your looking at the box as if you were standing behind the drivers side of the cab looking through the sheet metal
You must be registered for see images attach
Here is looking from the passenger seat.
I was not too worried with the details on the subwoofer or the ports
The big circle is the subwoofer, and the two smaller ones are 6" "aero" ports
You must be registered for see images attach
Just thought I'd throw these in the mix, and the angles are exact from the seat, that was fun measuring them...
~CodyB.