Don’t touch that dial. While digital technology has altered the way we consume everything from music to the news, it has barely made a dent in the dominance of that old time terrestrial radio. More than 90 percent of us still listen to radio each week, and radio’s share of advertising has remained fairly stable. Why? Mostly because we still spend a lot of time in our cars. With internet-enabled cars merging into the marketplace, radio could finally face a head-on collision with the future. (I still enjoy a ton of AM and FM radio, but it’s almost impossible to explain to my kids why I can’t fast forward over songs.)