May not be the same as yours ?
But on ours Winnibegao Aspect 28B
The coach access door squeaked bad, the previous owner tried to put a little piece of foam at the latch, well you have to close the door a little harder now.
BUT I found the culprit that was causing the most squeak, it was the little rubber stoppers on the screen door rubbing against the door , every bump or turn it would flex and squeak loud.
I took some rubber seal lube and lubed the rubber stops, cleaned the area where the rubber stops made contact against the door then added a coat of regular automotive wax to the areas where they made contact with the door.
Problem solved.