Because I once worked in radio, I'm often asked what radio station I listen to in the car. If I'm going a long distance, I'll usually turn on the radio and listen to either talk radio (sports, news, etc) or classic rock (usually The Drive or XRT).
But if I'm going short distances, I usually listen to nothing. I enjoy it. I enjoy the silence.
David Bryne of the Talking Heads was asked a similar question, and he had a similar response. I really enjoyed his piece in Smithsonian Magazine.
By the way, for you kids out there who have never seen David Bryne perform. You're really missing something. Here's an example from the mid-80s...