03 Explorer - Looking for a new stereo

OK, I have a 2003 Explorer EB.
This vehicle has the 6 disk CD w/ Sub, Rear Seat DVD, and the steering wheel
controls.

I'm thinking of upgrading the head unit. I'm looking for a stereo model that
would still interface with the DVD and the steering wheel controls as well
as the sub. I would like it to have XM and hopefully a jack to interface
with an iPod or other portable media player.

Does anyone know a specific model or brand that offers this?

Thanks!