I like the idea of the wedge simply due to the fact that no matter what you put in there the spare tire will be a pain in the butt to get to with almost any box and that seems to be the easiest. I've thought of making a custom cover for the spare with hinges near the seats so i could put a box up against the seats and lift the cover when i get a flat so i dont have to remove the whole setup. But then again I'm looking at two 12s to throw back there eventually, maybe those schnazzy 13.5 JLs they have on crutchfield... pricey but I'm considering them!