Okay, We've tried the first two.
the shifter seems to be working great. and lights always come on. We tapped the camera while in reverse, didn't work. I'll take that panel off again, I looked inside all of the connectors, but I wasn't 100% sure which one was the specific one for the camera itself. I couldn't quite get to the camera without removing that additional backplate. Do you know which one it would be?
Thanks for the recommendations!