I never understood it until someone I know had it in his company car. He told me they pay for it because when they do long distance, FM networks would keep swit

I never understood it until someone I know had it in his company car. He told me they pay for it because when they do long distance, FM networks would keep switching. That's when I understood their market. The current top comment is from a truck driver that pretty much confirm this. In road trip you never had channels that stop receiving? They pay 5$ a month to avoid to switch in theses situations ;).