I've tried everything I can think of. My passenger’s comm setup doesn't hear the GPS voice instructions. Maybe their not suppose too? I've played with the passenger’s side button controls with no results. The passanger helmet intercom gear works. You can hear music and the CB but no voice from the GPS. Any ideas out there? Thanks

 

Just like front GPS instructions, if the passenger adjusts their volume WHILE THE GPS IS TALKING, I think they will be able to hear it.

Is there another way to adjust the GPS volume?? Seems like there is, but I don't remember where.