I have to drive my in-laws' '06 Econoline across the country and I was hoping someone could answer a question about the head unit on these. I have to fly out to pick up the van, so I won't see it ahead of time and the in-laws have no knowledge about stereos and technology and such. I was hoping the factory head unit has an Auxillary port so I can just bring my mp3 player along. Driving from one coast to the other is a long drive that will need a lot of music, but I'd rather not have to lug a ton of CDs with me out there! Your help is much appreciated!