Hi everyone. I'm building a sound system for my house but with with all car system parts and I'm using a computer power supply for the 12v power. I bought a sub, sub box, and amp but now I'm working on the speakers. So far I've got 2 Chrysler 5.5 inch speakers from an old car. I want separate enclosures for each speaker. How big should the enclosures be? what dimensions? and will 1/2 inch pine work ok?