The radio stations in my area are all total and utter shit, and I'd rather listen to white noise while I wait for the BT to connect and start playing my music. I find it difficult to even listen to a radio station for a minute these days. It's now permanently set to a dead frequency.
My old car had an aftermarket head unit that would stay on the BT mode when I start the car, not making a sound while it's connecting. Current car always defaults to FM, and only when it's connected then I can go to the BT source option and get music from my phone. It's horrible!