I know exactly the noise you are talking about. I had it on my original 2021 Supra when I deactivated the ASD, only solution I found was to reenable it. I actually recently got another 2021 Supra and this one didn't have the issue so I guess only some do it?
Comes with Bride seatbelt strap
Used for 5 months, am original owner, no issues at all, decided to go for a wider seat, too narrow for me
$2000 pickup Fort Lee NJ