I am currently fabing up a box to sit on the rear seat so that I only lose the center seat volume is 1.01 less bracing
I plan to put a ten inch fosgate, it should bump quite nicely
the instaler wanted 150 to build the box
so i took it upon myself to design and build it from scratch about 3/4 the way there
however I nearly took my finger off with the speed saw so progress has slowed a little