Front GPS Screen DVD viewer
 

Hello, I would appreciate any help or suggestions.
The manual for my 2008 RR Supercharged states that when I put the vehicle in park and a DVD movie is playing in the back, I can also see the movie on the front screen as long as the vehicle is stopped. Currently, there is a black screen on the top left quarter of the screen where I believe this is supposed to happen, but no movie, even though it is playing in the back seat screens. Any suggestions? Dealer says my model vehicle was not actually supposed to have that option, even though my manual states this. Do I have any option to make this work? Any workaround? Is this correct?