this says its designed for kenwood systems, but its just a usb and a 3.5mm jack, instead of using a kenwood radio, can i use the usb in a usb car charger and the audio connector for the aux in on the radio? will it work without being plugged into a kenwood radio?

here it is
http://images.kenwood.eu/files/image/784/8/KCA-iP200.jpg

link:
http://cgi.ebay.co.uk/Kenwood-KCA-IP200-ipod-connection-lead_W0QQitemZ190161156539QQihZ009QQcategoryZ39760 QQssPageNameZWDVWQQrdZ1QQcmdZViewItem#ebayphotohos ting

thanks for any help!