Could anyone tell me why the radio reception on my 2015 Prius C suddenly got so bad. It was excellent until last week. Would it have anything to do w/ the noise filter in the electrical panel.
AM or FM? Did reception of all stations go bad or just one? Sometimes radio stations reduce power for repairs. You wouldn't be the first to think it was your receiver when it was actually a transmitter problem. Can you share any more info on this noise filter?
Did you try checking the tightness of the antenna? They tend to work themselves loose over time. I washed my C yesterday and ended up tightening my antenna down half a turn.