Does anyone have an opinion on the Bazooka CS8A amplified 6" sub tube? I need something compact for the back of my extended cab and I do not need earth-shattering bass and it is fairly inexpensive.
Don't get a 6" bazooka tube. Get an 8" or 10" tube. The Infinite 10" powered sub they offer sounds very nice and takes up only about 1 cuft of space I think. Check those out.
Look at Infinity Basslinks, too. Nicer than the tubes (in my opinion) and should fit nicely in a truck. If you're looking for Bazookas, though, get a 8 or 10 like Wahl said.