I got some advice on some subs for my truck a few weeks ago, but being the idiot that I am I went with something that someone else told me would work well because they had them in the same vehicle. I bought some Powerbass M104 10s and I'm pretty disappointed. They are decent subs but I wanted more volume. I was just being a cheapskate. I have .9 cu ft to work with...any subs that will put out some serious bass with that space? Has to be 10 inch. I apologize to anyone who gave me advice the first time that I didn't take.