The other day I had to remove the wheelarch trim on my 2017 F56S in order to replace the washer pump. Much to my surprise, there were three (3) loose parts, unrelated to the washer pump, that were just sitting in the horizontal trim plate that sits directly in front of the wheel. They had clearly fallen somewhere from above.

I successfully identified two. One was the upper half of this clip (going to have to replace two of these clips) and one was this cable holder (I know where this re-mounts to).

I was unable to identify the third. This is definitely a partial piece, and looks to me like part of an electrical connector. I have been unable to figure out where the rest of it was (or is) though I suspect the rest of it is still attached somewhere above/nearby.

Just can't find... where. I definitely want to figure this out if it belongs to an electrical connector.

Any ideas? Thanks!