Stop in for a cup of coffee

I am not sure the exact protocol for this group, but I need some help. I am looking for the name of a part so that I can research it better, but I cannot seem to find it anywhere. It's the piece that sits behind the interior door panel. If I can find the technical term, I feel like my search would be much easier. Maybe I need to be posting this question in another forum, I am not sure.

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