I have a 2005 EB Explorer with the factory rear seat DVD (RES) and factory sub. I'd like to replace the head unit with the Clarion NX 501 and still retain control over the rear DVD player. Anyone have any success with this? I'd even be willing to bypass the rear DVD player itself and just utilize just the overhead screen since the Clarion has the ability to play a DVD and listen to music up front. Any suggestions/ideas or stories of similar successful installs would be appreciated..Thanks!