"NavyChief200"....I posted in the link above, years ago. The info is still good. You may need a small magnet, like the small screwdriver with one on the end to find the two screws. A stud finder may also find the two screws or get you close. Once removed, you can access the underside.
Don & Mary
2019 Newmar Dutch Star 4018 (Freightliner)
2019 Ford Raptor