It took me forever to find but here is the cable repair end for the gm part#84876818 . this is likely the part that will break if you pull to hard on the video cable plugging into the bumper receiver. the repair end attached to the end of the cable then screws onto the black plastic connector with plugs into the bumper receiver. if you search part # 031-14693 on amazon or ebay it will pop up. gm said part not avaiil and i would have to buy new $500 camera.
SELLING REPAIR END FOR VIDEO CABLE WHICH CONNECTS TO THE RECEIVER FITTING, IF MARKING ON YOUR BROKEN PART IS 031-14693 THEN THIS IS THE CORRECT REPAIR PART. ONCE ATTACHED TO THE VIDEO CABLE THIS PART SCREWS ONTO THE PART THAT INSERTS INTO THE BUMPER RECEIVER. YOU WILL NEED TO USE CRIMPING TOOL TO ATTACH THIS CONNECTOR
I PURCHASED THE INVISIBLE TRAILER CAMERA GM PART #84876818, CAMERA WORKED GREAT UNTIL I RIPPED THE CABLE END OFF THE PART THAT PLUGS INTO THE BUMPER (DIDN'T LEAVE ENOUGH LENGTH CABLE TO JACK KNIFE THE TRAILER WHILE PARKING) LOOKING FOR REPLACEMENT/REPAIR END FOR THE CAMERA CABLE. DEALER DOES NOT SELL END.