I'll listen to NPR occasionally, like the last mile into work. Otherwise I'm radio-off for 95% of my driving.
For a few years, I'd get bored and scan the channels, but for years now there has been nadda on the radio worth listening to--and endless commercials. I'd rather listen to silence. Plus, with some old worn snow tires, I don't need any more noise hitting the ears, it's loud enough in the car as it is.
I sometimes wonder if I live an over-stimulated life. It's like every moment of the day has to have something electronically pumped into me, be it music or something visual off an LCD--or very often, both. Driving while staring out a window and listening to only what is in my mind, it's my one little joy in life I guess.
Edit: I did finally reach my goal of putting in my shortwave setup and will occasionally listen to CW on 40m, or SSB, or occasionally bump up to 20m in the evening when the band is open. But usually while in the car I'm not in the mood, not sure why but once I got it set up, it was like, the fun was in setting it up. Weird.