I have a 2001 S500. My navigation system has the voice that says "left turn in 500 feet"...does anyone know if there is a way to control the volume of that voice? Sometimes mine is louder than other times. Help!!!!

When the woman/man talks, lower the volume with the turning knob

In regards to the above advice, that's what I do. you don't even have to wait for her to talk, while you have navigation on push the volume button in and she will repeat her last command, during her speech, turn the volume down and it will only effect the navigation volume, so if you're listening to the radio, it will maintain it's volume level.