need some help with box design

[Neil Duncan]

I have 6 dc audio level 4 12 m2 and using 3 mmats 3000.1 amps I have a 1991 cadillac brougham what would be the best box design for this car and equipment I like deep bass and like to play for long periods of time

[Joe X]

It will need to be a wall for 6 12s most likely, post max dims of the trunk anyways just to see if anything could be done there but seems nearly impossible.