Pipeliner
My coach has the same configuration in the back. My back trim has an approx 6" - 8" piece extending from the bottom that fits/slides in over the top of the mirror. There are long screws inside the cabinet doors. Mine were hidden behind the light fixtures just inside/behind the mirrored doors.
Remove the interior cabinet lights, unscrew the screws in the top hidden under the light fixtures, slide trim out. If it is like mine, the rope lighting is attached to clips on the trim piece and will have to be unclipped before removing trim completely.
Chuck
Chuck & Katrina
2000 Featherlite
H3-45 Double slide
2014 Jeep Grand Cherokee Diesel