How to stop a rattle from the plastic holder for seat belt in car?

I have a squeaky rattle in my car I would like to stop. It comes from the plastic %26quot;holder%26quot; for the driver's side seat belt. This is the plastic seat belt casing that is located above and to the left of my head. The seat belt works and extends perfectly well. Any suggestions would be great.How to stop a rattle from the plastic holder for seat belt in car?Use a business card, empty match book, or anything else that you can stuff in there to stop it

apt rental2

relationship advice needed