Thanks for the info. I'm curious on the measurements myself. I thought of a under the rear seat set up but if I got the room behind the rear seats instead I'll go that rout myself.
I plan on installing a couple of sundown shallow mount 8s in mine with an amp. Going to be interesting figuring out how to wire it indirectly into the factory radio since most times I've ever done an upgrade like this I installed my own head units.
I feel bad for this situation all around. Its terrible the guys life is going to be changed for life. I can't personally fathom waking up one day with all the injuries he sustained. Glad that the semi tried his best to avoid but human error happens and Trevor seems to have been the tragic...