That was going to be my second guess. I’ve done that as well. The connector, as @JScaro showed, is the big grey one towards the bottom of the BCM. Pull the black cover off of the back and slip the red one off of the front and you can pin it. I don’t recall which pin you’re looking for thoughI have the precision retrofits HCM harness on the way for adaptive LEDs. Trying to do a little research before it comes in.
There is a tab under the pivoting lever that needs to be released in order to get the black piece off and the red piece is released on the sides of the connector (or front and back depending on how you look at it). Pull the out and slide the red piece downThanks dolsen. That was my one question actually. The red part looks straightforward does the black cover just pull off or is there a tab or something that needs to be released?