The reception of FM station in the my Model 3 is a lot worse than in my BMW - and I am in a major metro area.
Somewhat related - sometimes the audio system will totally freeze - for 5-10 or 20 seconds when trying to change a station. It is completely frozen - no sound coming out, and the screen freezes too (when trying to hit anything audio). After some short interval - everything goes back to normal (but the interval is not short enough not to be annoying).