I read that the nav/audio display's brightness automatically changes from day to night. OK. But is there any way to adjust the brightness level when the radio /disk display is on??

 

should be possible via the engineering menue

 

Go to "SETTINGS" menu to adjust brightness.

 

The MOST annoying thing about my car is that I can't control the inside lighting. Meaning, I sometimes want my radio and hvac control lighting to be ON but there is no way to control than manually. To me, if car decides to turn outside lights on the inside lights should come on at the same time.