RE: dvd player in ford freestar
You need to select the remote option........Press the head phone button on the rear control or the 2 and 4 buttons on thedash unit. Then the front can select a different audio source......Check out the owners manual if you have it.
FYI, If you use regular head phones in the rear jacks you can select radio/ dvd/ or CD seperate of the front (You can not select seperate radio stations. ie front on cd, rear on radio)