I took off the dog house so I could get a better look behind it. I saw what looks like the tabs, but still can't get to them to work on it. My solution, taking it to a service center (not CW) and let them deal with it. I think they might have to remove the dash to get to it, unless they have some cool tools that they can reach below and behind to work on it.
Dave, U.S.A.F. (Ret)
2019 Fleetwood Discovery LXE 40M “Big D”, 2016 Ford Focus, flat tow.
2016 Thor ACE 30.1