I just had a overhead monitor installed but I wanted to be able to have a movie playing in the back and be able to listen to my ipod or radio in the front. I was told that I can only watch the dvd in the back if it was on in the front. Now I know i can make this work by installing a seperate DVD player but wanted to know if i can do this without adding that.

Nope. Only the N and Z series do that

The only thing the screen will display is video from the unit's onboard drive, and only when the unit's onboard drive is being used as the current source. So basically it has to display the same thing on both screens.

a drop down screen with a built in dvd player would only have been a few bucks more. thats the way to go