Navigation Menu/Map: Press the NAVIGATION switch to display the navigation menu (or navigation map, if active). Press the switch again to toggle between the map and navigation menu.
Display Audio Source on Map: While map is displayed, press and hold the NAVIGATION switch. The current audio source (radio station or media file) will be displayed along the bottom of the map screen. Press and hold the switch again to hide the audio source.
Compass: For 6.5 radios without navigation, press the NAVIGATION switch to display the compass.
See Navigation to configure and operate the navigation features.