Believe it or not I used the 96 cent flat black spray paint from Wal-Mart. The stuff is incredibly durable (I painted my other car with it actually :lol

and has impressed me with everything I've used it on, so I decided to use it for my interior as well. I painted the dash, the vent rings, the radio bezel, and the A-, B-, and C-pillars with it and everything has held up great and looks professional too :thumbup:
-Brian