Now that I have the top off, I had to rethink the subwoofer placement. I had a box behind the rear seat, but I might as well put a neon "Steal me" sign on it the way it sat. I thought about bolting it down, but I like it easily removable for when I decide to fold and tumble the seat and load up the dogs for a ride. In the spirit of theft deterence, I went with a rear quarter install because the rear hoop of the cage will mount directly in front of it, making it impossible to remove the sub with the cage in place. Pretty basic install, fiberglassed a mold of the interior of the quarter, cut a 3/4" MDF panel, screwed/glassed them together, etc. I cut a couple spacer rings from MDF to bring the sub out 1.5" for basket clearance and overall airspace reasons. A little body filler to finish out the curves and some carpet and I'm in business. I didn't spend much time finish sanding the filler, since the carpet was backed and fairly thick, it shows nothing. Sounds pretty good for a 12" shallow mount in a topless vehicle. Here are a few pictures of the process. I'll post the final product when I get the cage, seats, etc. back in.