If you aren't using the VES you can plug in an RCA to phono plug and use that to play a device.

Otherwise you can purchase one of these (http://www.crutchfield.com/p_541CHYX...-Chrysler.html)
Please double check that it is the right one for your vehicle, but I had one when I had my commander and it worked great, but I lost sat radio which I didn't use anyways..