I had posted a week ago about an annoying rattle coming from the back. For the life of me I couldn't figure it out. I set up an appointment for service but after thinking about it I said damn it I'm gonna resolve this myself. So I cancelled the appointment. After 2 days of troubleshooting I finally found the culprit. It was where the rear seats latched into the back panel. Fold the seats down, no noise. There is a tiny little bit of movement when the seats are in upright position causing the the rattle as the metal pieces hit. Gonna fashion some kind of cushioning to place there when the seats are upright. Hope this helps someone else.