See "Ford to drop AM radio in new models, except commercial vehicles": * https://news.ycombinator.com/item?id=35416627 https://news.ycombinator.com/item?id=354

See "Ford to drop AM radio in new models, except commercial vehicles": * https://news.ycombinator.com/item?id=35416627 https://news.ycombinator.com/item?id=35416627 Generally traffic/weather/emergency information, especially less populated regions, and remote regions (e.g., mountains) that get no other kind of signal. Various DOTs have AM radio transmitters for PSAs.