I have a 91 fox body convertible. I'm about to install a Blaupunkt London stereo, already have Polk Audio in dash and rear quarters (lost the door panel speakers when we rebuilt the door panels). Anyway. I now have a 500 watt Fosgate amp and a single 10" Fosgate speaker to put in the trunk. Can anyone point me in the right direction for box plans or prefab boxes for the trunk? I do not want to do a top-fire set up or the deck lid will rattle and there's probably not quite enough room to do a front-fire set up without building a step-box.

Suggestions?