I own a 2020 Sentra SR, I had the sunroof and windows open. When I accelerate I notice a mild rattling sound from underneath the passenger side. It's very annoying. I have taken the car to three Nissan service departments, they can't find a thing wrong with the car. Has anyone else experience this issue? I have 1800 miles on my car. I also hear the rattle when I first start the car, it lasts for about 20 seconds.