Hi, for iphone 4, what do you recommend if I wanna connect my iphone to car's audio system, and play songs from my iphone thru the car's speaker?

My car's only usb port (mini usb port) looks like the left 1 in the picture:
http://t2.gstatic.com/images?q=tbn:ANd9GcR...--2i2H_F2J8OAwA

Please advise via PM
Thanks

This post has been edited by bladekiller: Jun 22 2011, 10:01 PM