I put mine in the center console, and I'm really happy with how it turned out.
Careful with that, you don't want it to vibrate to much on the side of the seat when you put it back, it will eat a whole right through it, I had a buddy who put a sub there, didn't last to long. You might be alright if the sub is set back far enough in the case.
Yeah, that might become an issue, but right now, the only thing that hits is the seatbelt, and it is firmly on the outer ring. It's also holding everything else away from it. I think I'll probably look for a grate, though, just to be on the safe side. Where it's sitting is where I sit, so right now the rubbing isn't a major issue.
Now, I understand that the sub is too big (they didn't have any smaller ones and I didn't feel like waiting to find one or paying some stupid rediculous price for one that I will end up destroying anyway), and that it's not in the best location. It was picked out of necessity. I don't have anywhere else I could put it. I had nowhere to put a tube, I had nowhere to put a box, nothing. Also, I got away MUCH cheaper than I would have with any box system. It's a trail rig, remember. It sees abuse. Cheap was the catch-phrase of the day.
Also, I was not really expecting to get as good of a result as I did. I thought the enclosure would be too small, that it would wash out or vibrate itself into oblivion, but I managed to make it sound pretty good. It's not as good as the dual 10's in the trunk of my BMW, but it holds it's own.
If I was going to do it over, I might have held out and looked for an 8" sub. But....beggars and choosers and all that.