I know I'm late to the party, but here's how I secured mine. I utilized the old jumpseat bolts and used all-thread(threaded rod) and literally bolted the box to the truck then installed the sub. It ain't goin' anywhere and it doesn't shake around and slide around like nuts like it used to. Thank you slick vinyl floor. lol. It's rock effin' solid.
Originally Posted by spect8r
Anybody got any ideas about a regular cab? Sounds sucks. Kind of a waste of XM radio.
Look into a MTX Thunderform box. It's only a 10" but it looks factory and is just enough punch. And you can get it non-powered and toss in your own choice of 10" sub. My brother has one in his with the little 200w built-in amp and a Kicker CompVR and it sounds very nice. If you got a split bench with the fold down console, it sounds even nicer.
OR....I really really suggest you search around these boards. I'm fairly positive there's at least one thread dedicated to regular cab setups. Search is your friend.