Marks2020GMC

Jarett, I am trying to install the mirrors with the cameras in my 2020 sierra to give it the 360 surround. how did you wire in the cable for the cameras. It looks like on mine I have a cable in the door from the camera plug in the mirror harness. Do you know where this goes or does it dead-ends at the body connection? I bought my video control module from you and the rear view display mirror. any help would be greatly apperciated.