How do you stop your license plate from rattling from a system?

To stop your license plate from rattling, you can use rubber washers or spacers between the plate and the mount to absorb vibrations. Tightening the screws firmly can also help, but be careful not to overtighten and damage the plate. Additionally, you can apply a thin layer of felt tape on the back of the plate for extra cushioning. If the rattling persists, consider using a license plate frame that holds the plate more securely.