Thought i share a build Ive been working on my free time. Don't have much to share for the beginning of the box but here is what i have so far. To inform you a bit, its a box for 4 ten inch TC9 based subs. The enclosure is being built to fit under the rear seat. The rear seat does have a seat lift to allow for the subs. The box it self before displacement is about 3.6 cubic feet.