Hi there, I was hoping someone might have some thoughts on what this noise is coming from behind my rear convertible seats (or underneath the car). It happens intermittently at idle as per this video and when accelerating up to 40mph: https://everockassets-my.sharepoint.com/:v:/p/te/Ef3liBj3VSZEhD7PVHAJN2YBrUAsoXGjxTnNalyDO_uUCQ