Hello! I have a 2007 Chrysler Aspen with a factory 6-disc CD changer, and rear DVD/VES system (no Nav, satellite or bluetooth). I want to install an aux outlet to plug in my iphone and play over the speakers. Anyone know of any options?? I would like to either:

A: buy a new factory head unit that has an aux jack, but the only ones outfitted that way have options my car doesn't have.

B: buy an aftermarket product that I can rig to factory radio that won't eliminate my rear VES system.

Thoughts? Any insight is much appreciated