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I really dislike that they took away easy access to previous audio stations. Instead of a quick swipe up and large icons for previous settings right where your hand is now is a tap and move across the display to a tiny list. At least suns note pick up where they left off instead of restarting.
Try buckling the seat belts in the back and maybe the front passenger seat and see if the rattle goes away. I’ve found the right rear buckle likes to rattle like this over bumps unless it’s positioned just right.