Entune premium navigation/radio volume

Question about the entune premium system. When you are using the navigation system and the directions come on for streets or turns Should the radio volume turn down and the navigation system volume be the only thing you here. Is there a separate volume controls for the navigation volume and the radio volume?

 

my radio volume does not change during nav. I think there is a few setting in the nav section for volume. sorry I'm at work and can't go out check right now.

 

I will have to check into it further also just from playing around with the radio and skimming through the manual I didn't see an adjustment for it.

 

I would check out the navigation and multimedia system owners manual. just another book to read! haha

 

Volumes are independently adjusted. Much better than the old way of muting the music