I was wondering if there is a AUX RCA input on the back of the factory stereo. Or am I going to have to do the whole FM thing? Thank you.

there isn't a plug in the back. Do a search in the audio section of "ipod" and you'll find info about the USA SPEC PA11-NIS

i don't recommend the 'fm thing'

i've tried that on my other car, and it was static as hell
just get the USA SPEC PA11-NIS like redlude said.

def go for the usa spec

As stated above go to the A/V section and search for USA Spec

I bought the NEO-Ion Adapter from mp3yourcar.com, and it works pretty good...I think the big advantage over the PA11-NIS is that you can still control the ipod via the buttons on the Ipod. The other unit does not allow that does it?

Not true, with the USA Spec the wheel and button on the ipod function perfectly. Plus you have the added benefit of controling your ipod via the steering wheel audio controls.