2006 Jetta - installing and iPod adapter
 

I have a 2006 Jetta with a factory installed 6cd in-dash stereo, and I'd like to install an iPod/iPhone adapter. I'm looking for some DIY help. What is the best adapter to buy? Can I fairly easily install it myself? I don't really care about controlling the iPod from the stereo. I just really want to be able to listen through the stereo.
Thank you.