I have searched Ford, OKorder and the internet in general. Where in the world can I get the connector that goes from the factory plug to the dvd player?
Find out the DVD manufacturer and contact them about this missing cable. Somewhere in the Ford supply network a cable must exist. Probably came in through Mexico or on a container into some port.
That connector is probably in the factory DVD player, is wired just for the factory unit. Dig on OKorder for a factory DVD player.