Am I missing something here? Can you have the navigation speak it`s direction prompts without having to listen to music such as the radio, media files etc.? I tried muting but that also muted the navigation prompts.
I wonder if you turn to aux mode, but did not have anything playing. Sorry I do not have the same system, but that would be the first thing I would try. But then I always have SiriusXM radio playing.
I asked my dealer that question. It floored him. After a moment of thought, he came up with the same answer. Cswitch ahe auio to media, then turn on Nav.
I have a 15 ultra limited and lowered the radio to 1 bar and the nav unit played loud and clear at 80 mph. On my unit the mute did not mute the nav unit I'm not sure why.