Audio Systems: 2005 Expedition Limited Audio Question, wireless headphones, 2005 ford expedition

Question
Hi. I recently purchased a used 2005 Ford Expedition Limited. It has a navigation system and a rear dvd system. My question is, can I play a dvd in the rear but listen to the radio in the front? (I have 2 sets of wireless headphones also.)

I thought I had read somewhere that I can do it through the navigation screen. I have yet to figure out how. (The manual says nothing about this.)

There is a button that has a pic of headphones/a volume sign. I pushed it but it hasn't worked.

Can you help?
Thank you for your time!

Answer
I have a very similar suv lincoln with the same radio dvd and headphones
press the video turn on the dvd use the headphones and press the am fm button from the radio,
you will lose the rear speakers and subwoofer  the audio will be from the front speakers only
if there is no aux button on the radio there is a button on the dvd if you cicle using the radio buttons to vieo again the dvd will stop