Well, I'm glad I got to see someone do this mod, because I've wanted to do it for quite a while, and now I'm kinda glad I didn't.
I wanted to mount my fullsize spare on the outside, and put a speaker enclosure shaped like an inverted peace sign for subs and 6x9s on the inside. I figured the weight on the hinges would be too much though, and laziness helped too.
Anyway, the body lines for the spare on the inside really push that exterior spare out too far for my taste. Oh well. Still want to get the spare off the roof, and keep the backseat, and for now that just means using the stock spare. Ouch.
-Daver