Okay, what the heck is this thing?

I don't think even the BE section documents the color changes like the ones on that chime unit. I think the only way to figure all of those out is individual inspection of all the wires on the side of all the devices plugged into the harness. In other words.... No way.

I think we all just have to understand the situation and why it is the way it is. I think now that we have identified the issue, it's not much of an issue.