The radio in my 85 GL1200A Goldwing will work fine for the first few minutes on startup, but then lose the sound to the point of barely hearing it with the volume all the way up. I was wondering if the problem could be the radio, amplifier or something else. In the beginning, the music will play louder the faster I travel, but then won't do anything and I hear very little out of the speakers when stopped and it will stay that way for hours or days before it returns to normal & I go through the same thing again. Not sure if I should send the radio out for repair? Or would something else be causing this problem?