Unused connector in front doors?

[AdventureTim]

Does anyone know what this unpopulated connector is in the front doors of a facelift LR4 is?

I have a fully optioned HSE Lux with the vision package. The center plug is the mirror loom, including heating and BSM indicators, and the right plug is the video signal for the mirror curb camera. As far as I can tell, the LR4/Disco 4 was not offered with auto dimming external mirrors, but that extra connector had me wondering if there’s a Range Rover equivalent part that might work on the LR4?

 

[16FujiDisco]

Possibly for the reverse dipping mirrors like on the RRS? I know the LR4 shares a lot with the RRS