Between Pandora, Slacker Radio and Stitcher radio, I never even turn on regular radio in any of my trucks anymore.

Pandora is good for all sorts of music - Lots of hours but if you happen to use up all the free ones.......
Slacker Radio - Good backup when you limit our on hours on pandora
Stitcher Radio - Good for talk radio, Adam Carolla show, comedy stuff....

I don't even know how anyone can listen to regular radio anymore.