When I connect my iphone 4s to the Cue system via the iphone cable to the usb port, the Cue Center display and dash display shows the album artwork. I would prefer not to connect my iphone to a cable every time I get into my car so I figured I would move my music from iTunes to both a 4G Sony flash drive and a brand new SanDisk 8G Ultra SDHC card class 10 but neither produced any album artwork?? Everything else seems to work fine. I have looked for threads indicating similar issues but haven't found anything specific. Any help would be greatly appreciated!