Good job!! The rattle I usually get is the other part of the seat buckle rattling against the door pillar area. Every time someone unbuckles, it manages to come to rest sideways and I have to reach over and flick it sideways.
Same on my 2019, just the passenger side, not the drivers.On my 2021 Ranger, saw that fuzzy piece of Velcro on the back of the buckle and I’ve been looking for where it would attach. Mystery solved.
I bought it new so it came like that.