i couldnt really figure out any way to make a 20 inch wide 2 foot long rack to go behind the drivers seat and look halfway decent, so i decided to remove both backseats and have the amps on the sloped platform where your back would lean against, side by side, all the way across. i think to get around the curves im going to do 3 layers of mdf, smallest on bottom, then wider as i clear the curves. i want to keep the side trim pieces but im having a hard time figuring out how to securely mount the mdf there to support 20+ pounds worth of amps. any ideas?

 

Brackets of some kind to go from the amp rack to the mounting area for the seat belts ? Assuming you removed the back seat belts. If not, maybe run a brace across the shock towers, and "hinge" the rack on it, resting down against the wall where the seats used to be.