I recently had to replace my console sub in my jeep and after much searching, decided I just wanted to get something in there because the rattling was driving me nuts... I found this sub that fits with just some dremel work since its not a shallow mount. all in all just a few minutes to get it right.
for the price i figured i could buy many of these compared to some of the more expensive ones. It sounds great, its not a thumper but does the job. Anyways I just wanted to pass along what I thought was a good deal to my fellow jeepers
Goldwood GW-406D 6-1/2" Poly DVC Subwoofer Shielded 290-352
hopefully that link works...