I think the problem is every time the car starts it scans it as a new device. What is surprising is that it always starts on the song you left off, but nothing outside of that get's saved like shuffle options. I also can't shuffle inside a folder...say I had Rush open with 25 albums or so, but no option to shuffle all in that folder. My wife's IPad plugged in had a shuffle for the folder...so it appears there has to be a brain attached, not just USB stick, the car can't do this task. You'd think at $40,000 it should have something in there to run like a simple MP3 player when a USB stick is attached...