I have a ton of music and I really missed being able to shuffle when listening to music in my car. I created a workaround that has worked well for me. It's an App for the Mac called Music Randomizer that randomizes music on a USB drive using random folder numbers and file prefixes. http://andykellr.github.io/music-randomizer/ As I mentioned in a Tesla forum thread last week, my wife and I just had a baby girl and I took a short hiatus from my work at http://tractionsoftware.com. I wanted to write some code using the Swift language and this was big enough to be interesting but small enough to manage as we adapt to having two little ones.