The Android head unit in my car does not display the Navigator map full screen. As a result the main menu is not displayed correctly with the text being cut off under the icons. By default the system audio app tab is displayed on the top section of the screen. I installed Sygic and it does display full screen so it must be a function of the app to request the use of full screen from the Android OS. I have tested the Navigator free maps on the head unit and it works very well, Sygic crashed after 20 minutes and would not restart.