I'm experiencing an ongoing issue with a persistent metallic rattle coming from the rear passenger side of my vehicle. Almost sounds like Morse code. Despite removing various panels, dampening clips with Teflon tape, checking subwoofer and amp area, removing rear seats and addressing other rattles, I've been unable to pinpoint the specific source of this noise. It's audible even at 2 mph on smooth roads and is a constant presence, it's not detectable from outside the vehicle. I'm determined to resolve this on my own, as I lack confidence in Tesla's repair services. I've attached a video for reference, I'm unsure if everyone can hear the rattle amid the road noise. You can definitely hear it constantly in the background if you listen. Any additional insights would be greatly appreciated.