There should be at least one AUX on the rear of the CD box. However I found a pic by pic guide to mounting an Ipod in teh car..click here
click here is a brilliant gadget for using an Ipod with your FM radio...I suspect that plod on wheels will have a fit if you use it in the UK;-))
click here more how to pics.
click here has loads of info. Any half decent car sound installation company will be able to set it up for you.