New Sub

I want to replace, completely, the sub in a 02 maxima. I want to use a Stryke AV-12 sub. It's a great sub. I will only use 1 driver as I DON'T want 120+ dbs in my car, that's what my home theater is for:biggrin: . Anyway. How would one go about building a sub box for a car? I know how to make one for a home sub, it's VERY easy, but don't know about cars. Also, does anyone have any info on the stock sub amp? I don't want to get a new one if I don't have to.