oh yeah...back on topic.
If you decide to go with the spare tire well approach, I would highly recommend getting a single 10" from Stryke.com
http://www.stryke.com/SAL10PFPHN.html This is,without a doubt in my mind, the best 10" when it comes to Sound qaulity and among the best in output. It has a copper faraday ring and a underhung VC, which in combination with each other virtually eliminate all distortion. It would work well in a .5 cubic foot box, but better in anything up to a 1 cu. ft. box. More info in a minute or so.
