Anyone know where this goes in my drivers door

[RobGrimsby]

Hi All
I am swapping over all the internal parts of my somewhat dented drivers door on my Boxster 986 with a new shiny one i have purchased
I have been taking photos and bagging everything to make sure it all goes back on the new one the same
BUT the part in the photo was in the bottom of the door and i have no idea where it lived
does anyone recognise it and have any clues

[RobGrimsby]

Its ok i have worked out it was the back of the window regulator LOL i must have undone the bolt too much when removing the glass,