Originally Posted by skreps
OK, it turns out as several of you said that the major rattle was from the screen door. It took my daughter riding in the dinette seat a millisecond to identify the location of all the noise.
My solution was to attach a thin piece of rubber at the two points where the door touches the screen door. I used double sided adhesive tape. the previous owner had a strip of rubber glued to the spot where the door mechanism hits. I replaced that with some door way insulation left over from sealing up my house.
The dealer realigned the shower door so it closes without a gap. And I put some round foam insulation along the bottom channel to eliminate some noise from the door.