Not sure what you would call this, but I think it is interesting nonetheless.

I have a e92 BMW. It hasn’t done this in a while, but a few times the audio would stop playing and it would freeze in aux mode. How do you fix this problem? Easy! You just put the car in gear, undo your seatbelt, and wait for it to start chiming at you because of course that’s the first thing you would think of when your radio stops working in a BMW. The chime comes from a little speaker in the dash and whenever it start going off, the radio will start working normally again.

It makes no sense to me either.