My hand is raised. I like having 8GB of music on an old (USB2 is fine) flash drive in my car as a fallback. On longer trips I'll hookup the Android Auto, but if I don't need maps and it's a quick ride, shuffle & repeat all enabled on the USB source.
Sure beats the radio, which plays 2 songs and then 5 min of commercials/sweepers, and has the gall to run ads on the HD text transmission on FM designed for song information.