Connector behind license plate

[CaptainMorganNC]

Does anyone know what this connector is used for in the bottom left corner?  I believe that the two modules that I do have are the keyless entry and the trailer tpms.

 

[nards444]

Upfront they use the same wiring harness for many trim levels and even models, so sometimes things are not used.  My guess if its back there has something to do with a camera,  the trailer blind spot camera, or something to do with a power tailgate.

[newdude]

I see no wires coming out of the back so more than likely its a dummy cap for the keyless entry module if the truck was a base truck with key ignition.