how do I disconnect the rear view camera cord so I can remove the tailgate?

In the owners manual on page 6-76 "Disconnecting the Rear Vision Camera (RVC) The RVC must be disconnected if the tailgate needs to be removed.> The RVC is disconnected by removing the connector from the electrical junction box mounted on the left side of the cross member of the vehicle frame. After disconnecting, the cap mounted next to the camera connector must be relocated so that the open terminals on the junction block are covered.you have to disconnect the camera from the rear electrical block where your tail lights and everything plugs into.