I know this is an "engine" forum, but just one more comment on this Sync issue. Yesterday, after pulling the fuse, the ipods did work, for one song. Then when I restarted the truck to go home after work, all the songs were there and would play, only with no sound output. I tried everything I could but no sound from the iPod (radio, CD/DVD, Sirius, Jukebox all had sound like normal). So I pulled the fuse again and now have sound and all the songs. So, I'm wondering, I know USB is supposed to be "hot swapable" but maybe I need to disconnect it before turning off the truck? or switch to a different media type (like radio or CD)? I just really don't know what is causing the "corruption" of the USB connection that happens intermittently. Any ideas out there?