surprisingly the two top pioneer premier units lack the USB connectivity, but the lower models use USB for connecting to the ipod, as well as portable other usb devices (like portable hard drive, jump drive etc) The higher end models require an Ipod adaptor for full Ipod control, otherwise you can use the AUX input jacks. I really like the clean look of the Pioneer FH-P800BT Double din unit. Does not have the nice bright OEL display but it sure looks classy! Has USB/ipod/auxillary input.. Im thinking of purchasing this one after christmas;
