The best driving soundtrack is the SCAN button, when the radio searches among however many stations are available, plays five seconds of whatever music or words are in progress, and then moves on to the next station. Which may be static. Which may be Led Zeppelin. Which may be a farmer selling a plow. Which may be mariachi. Which may be the song you forgot ever existed, the song the once-you once loved, the song with the confusing lyrics. The song that makes your eyes tear up. A giant endless loop of possibility.
Where there are fewer stations, there are larger silences, silences lasting long minutes. Once you forget you are scanning, a preacher may suddenly startle you, yelling something about truth.
But only for five seconds.
And you drive on.