I need some suggestions and pictures of how to mount a sub amp in the trunk of a '03 Mustang Convertible and keep as much space as possible. I was thinking about mounting a board parrell to fiberglass board between the trunk and were the top goes down. I am installing a JL Audio 250/1 (12"x12")that will be powering a JL Audio Stealthbox. I am splicing into my Mach 460 system. Any help would be great.