PA11-CHR iPod to Factory Radio Wired Music Interface Adapter with AUX RCA Port - Compatible with 1999-2006 Chrysler Dodge Jeep Vehicles - Perfect for Car Audio Upgrades & Hands-Free Music Streaming

So I was thinking to myself about the current state of the WJ (grand cherokee);and was frustrated that Jeep didn't think to add an Aux input on the dash. This product came to my rescue! It is super easy to install everything is plug and play. All I had to do was figure out where to route the cable and where to stuff the little white box. Other wise I can skip through songs in the WJ with the factory head unit. Just need to start the music app on the iPhone 4 before connecting the cable to the bottom. So far it has worked great and the quality of music and usability of my stock radio has now improved. Yes it works with the iPhone 4, charges it, and is realy awesome.