I found it dangling and plugged it into the dead end socket above. Dont know what it’s used for. This is on a ‘23 SLR. This is located under the hood at the front of the Sling, on the left side. There is nothing like this on the right side.
The April 2023 included the backup camera update I believe. However, it is not on all the time. You have to click the camera button on one of the screens and then it will stay on even when you’re moving forward for about 15 seconds. That said you MUST update to the July 2023 update as the April 2023 update apparently has a software error that freezes the backup screen.