Cruiser, the screws were located just under the RV at the base of the trim track, the vinyl was run under the coach with the screw going through it to hold it in place. After replacing the trim twice at the dealership, the screws were added at the top and the bottom of the trim track they added silicone to the top and bottom where the screws were added too.
After purchasing the new vinyl trim (DIY), the screws were removed, new trim put in place, along with silicone and screws on top of the rig, the bottom left loose with extra trim to allow for shrinkage. No more trouble.
__________________
|