I muted the voice alert for turn by turn directions but when it comes up my NEX 8000 mutes the music as if it were telling me a turn by turn direction.  Is this normal? It basically wants to give me an audio cue for turn by turn directions but since i muted it/turned it off it mutes the the audio as if it were giving me turn by turn direction.

how do you turn this off?

Thanks in advance.

Click the 3 lines to get into settings from your map, and go to nav options and search for the function amd turn it off.