gres67gs

New to the site just bought a nice 99 CLK320 convertible 208.465 went to replace the mirror glass on the drivers door and the heated glass has a 2 spade lug connectors but inside the housing I have an oval connector (5 female openings with 4 wires) I think I'm missing a piece maybe a temp sensor or some kind of adapter. Any help would be great

Thanks
Frank G