BLK21RST

Thanks for the response! The cable was seated properly, but may have been faulty. Ended up buying an OEM camera cable from a GM parts supplier, switched it out today and it works great.

Trying to add the camera mirror to my 21 RST. I was able to verify I had the 10 pin connector in my headliner. I purchased the mirror(13536955), third brake light(84929551), and a camera cable that I saw someone use for a retrofit into a 2015. I got everything installed and the mirror powers on when I start the truck. However, I am not getting any video feed to the mirror. My 10 pin looks to match up with the diagram discussed in this thread. Does this sound like I’m missing something or does anyone have any suggestions on getting the video feed working? Any help is greatly appreciated!