Does anyone know if there is a way to turn off all noises while recieving GPS guidance on the sync 3 system? I see that there are options for voice only, voice plus tone, and tone only.....but there does not seem to be an option to turn off all of them. I find that even the tone only option is annoying, and I find it hard to believe that they did not create an option to turn everything off.

 

Do you think that "Mute Guidance" on page 53 in the Sync manual, might do what you want?