There are numerous options out there, including ones from the dealer. I have an '06 and bought one off amazon from usa spec. It was easy to install (just plug it in the back of the head unit), then run the wire to the glove box, where you use the dock connector, and it charges and plays the ipod. The stereo thinks it is an external cdchanger, and you can change songs, or playlists from the steering wheel or head unit, however you will not get full info like track info, etc. Kindof depends what you are looking for. I paid around $100 and had in installed myself in less than 30 mins.
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