Custom Plywood Sub Box Design

I have the subwoofers and the vehicle ready—I now need a fully-detailed design for the enclosure. The box will be built from plywood and finished with a carpet wrap, so the drawings must account for board... (Budget: $10 - $30 USD, Jobs: 3D CAD, 3D Design, 3D Drafting, 3D Modelling, 3D Rendering, Acoustical Engineering, AutoCAD, CAD/CAM, Fusion 360, Solidworks)