Sorry for late reply, no notifications on.
I am using a USB plugged in the arm rest as I did before the update. Before the update it was fine, continued where the last song ended. After update, each time car is restarted, the music will go back to folder 1, track 1. This is with phone unplugged too. So literally can manually play any song, turn off the car, go have a cup of tea and back to the car where its back to first track.
Jukebox doesn't hold folders so never used it. Or does it??? I couldn't get folders to show. I like my music in folders (English, Indian, Rap, R&B & so on) to help me choose what type of music I am in the mood for, lol.
AA/CP can not interact with car storage AFAIK, as it is the phone it is running off.