Missing plastic piece on access cab door

UPDATE: I found out this is part # 6269534010 and can be bought on https://parts.toyota.com

I'm missing this small plastic piece on the rear passenger door to my base 2012 tacoma access cab and it’s bugging me that I don’t have it. I know it’s not an important piece and most anyone else wouldn’t care that it’s missing but it’s just annoying because aside from that one tiny thing the truck inside and out is in perfect condition and I want to keep it that way for as long as I have it. So my question is does anyone know if this plastic piece can be bought online or if I have to go to a junk yard to find one? Top picture shows door with the piece, bottom shows without

 

Let's see if anyone knows what that piece is for. (I know)

 

You got me? But I would pop off the otherside and take it in to the dealership and get the correct peice sometimes theres part numbers on the back stamped in

 

I believe that is just there as a pad for the seat belt buckle.

ETA: I may be thinking of a different piece of plastic. Not sure.

 

When you open both doors, close the front door 1st, and then attempt to close the access door, that plastic piece is what contacts the front door.

 

@Muddinfun nailed it.



BTW, since I mentioned the seat belt. While that pad will protect the door bottom, this can happen...