The easiest is to connect any mp3/pod (your iPhone) headphone output to the mp3 glove box input and select the "aux" on the radio (see <saronian> post). But that will NOT charge your device.
Cheap: I. e. ($4.99)
http://www.radioshack.com/product/in...entPage=search
Important note unique to the iPhone: you may need a 3.5mm Headphone Adapter for the Apple iPhone recessed headphone jack.
I. e. (on sale $3.95, normally $10+)
http://store.mygearstore.com/helium-...ack-11006.html
Check this thread for several elegant and more permanent solutions, some illustrated and some allowing the device to be charged while in use:
http://www.smartcarofamerica.com/for...5950#post45950
especially post #16
(links purposefully left complete to eschew blind misdirections)
