I recently upgraded my sound system and in the process I put Cascade Audio's "Gator Skin" on all the doors (supercab). I got a buy two get one free deal on the gator skin and used almost two rolls on my doors.

I have a 3x4 ft. roll left and can't decide where to use it. I'm sure it is too heavy for above the headliner. Would it be better to put it on the back cab wall behind the seat or get as much as I can on the interior side of the firewall? I don't think I have enough to make it worth doing the floor pans not to mention pulling the seats would be a pain. So, what's the concensus?

 

Put it on the back cab wall behind the seat