[porsche1984944]

I cant remember where I saw it but someone posted details about how the put a 10"(I think) IN the spare. They lined the inside of the spare with aluminum foil them got some fiberglass that you can mold and molded it into the spare so it contoured perfectly. Let the fiberglass harden and I guess the foil prevents it from sticking to the spare but its not too loose. Then they took out the fiberglass drilled holes in the back for wires then placed i piece of plywood across the face (I assume they left a lip with the fiberglass) attached the wood to the fiberglass and put the speaker right into the "box". Like I said I saw this somewhere online cant remember where but again I am assuming that the fiberglass was pretty snug in the spar or else it would rattle around and fall out. That seems like a very space saving effective way to improve sound quality to me.