I had the same problem with my Windsport 29M. I had my son try to find the rattle noise as I was driving. When he pushed on a certain part of the screen door the noise stopped. I went out and bought brown felt stick pads used for under chairs, furniture and stuck them in the area between the screen door and the main door, that took care of the noise. The pads matched the color of the door and not noticable.
__________________
|