My girlfriend has a 40th Anniversary Edition Mustang with the base stereo in it and had a question. She is getting a new iTouch for christmas and I need to get her a new adapter as the radio one she uses currently is not compatible with her new iTouch. I have always noticed that there is an aux button on the radio that doesnt seem to be hooked to anything so I was wondering what would be the best iPod adpter to use in conjunction with the factory stereo. I know that there are several on the market but I was wondering if anyone here would have any opinions in the matter.

Thanks In Advance