inputs.text: works perfect usb ami vs ipod ami - first let make clearthis usb cable not iphone ipod samsung devices connect usb cable running device not workthis cable plug usb flash drive usb hard drive musicworks great 2006 audi a6 mmi 2gthough mmi pretty slow skip change songs compared audi ami ipod cable connected ipod theory ipod cable uses ipods processor change songs quicker sends audio analoganother thing read usb cable plays digital audio flash drive ipod cable plays analog ipod using analog chip would explain theory ipod changes songs instantly usb lagsalso difference sound quality usb clear sound barely noticeable difference guess usb plays digital sound ipod plays analog since mmi pure digital signal transmitted fiber optic cable analog converted digital able go mmi analog final output amplifier speakers process lose quality theory though