By the way, my subs are in a sealed box.
I enjoy the crisp bass and the sound characteristics.
The box (which contains the amp mounded on the side) is mounted on a large sheet of plywood...lays ontop of spare tire cover and carpet/subs face out towards trunk lid.
I have made the dimensions match those of the plastic covering over the spare tire (under the carpet)
I used 1" wood screws to do this and have been very pleased to date.
Any questions you have please let me know brother.
190E 2.6 - 244 000 km