Have a 2004 GW and have no sound thru the headset. Had the bike about a month and just hooked up today. Looked thru the manual, and have looked at the connection under the left cover. What’s odd is I can tap on a speaker for one, and hear the tapping thru the other. No other sound. Pretty base model with am/fm radio only, no cd or cb. Plays great thru the speakers.