How Do I remove This Trim Piece On A Fleetwood

I have the weep hole covers, I know what you are talking about its a annoying squeak that has got worse over time, I have done all that I can from inside and I do believe the screws behind that trim are loose because the squeak comes from the exact same spot on other side of wall.

If this was somewhere else in motorhome other than front I would probably never hear it but its right up front in driver seat area.