Hello, this is my first post. I have a 90 wing. while riding, fm radio sounded like speakers blew, got very noisey, no actual music could be understood . Replaced speakers, didn't change at all. Any suggestions?
Just a thought. Do you have a CB radio on the bike. If you do and have it turned on with the squelch turned all the way to the left you might be loading the audio system with atmospheric noise from the CB.
Just an idea.
If it does the same thing with the cassette player and you try different speakers than I would guess it's something in your radio unit or a broken wire leading out of the unit. Sierra electronics can fix it if it is the radio unit.