Did anyone ever attempt to build a fiberglass speaker cab? I'm talking about an odd shaped small subwoofer enclosure to fit snugly next to the LPG tank in the boot of my (new) car. I guess I'll use wood panels for the bottom and mounting flange of the driver (a nice 12" I have lying around), attach those together, and somehow mold the rest of the cab. But how to make the mold? I can think of three methods: - Tape off the boot, put the first layer of mat and resin in there, and start layering mat on the outside of that. But then the cab will grow in size and never fit. - Start as above, but put layers on the inside. That would be a lot of trouble, working through the 11" hole. But maybe it's worth it. - Make a separate mold (cardboard, chicken mesh or polyurethane spray foam), trim it so it's a bit smaller than the cab should be and put resin on there. In the case of foam cut it out afterwards. Any help would be appreciated. Reagards, Joris.