Elusive door noise!

[Siesta]

My '07 Fourwinds 28 foot Siesta has an intermittent noisy door clatter at highway speed that I've tried to track down (depends on road condition of course). First thought it was just the latch rattling on the pins that it sits on, but its not that. Then thought it might be parts of the screen door attachment...nope. Its quite an annoying sharp clatter, and near as I can tell its something 'inside' the door itself, which seems weird because there is no mechanism inside the door to speak of, given that all the latching is over to one side. I'm not familiar with the door construction other than it has a privacy, non-opening window that is securely attached. If its somewhat hollow, I suppose it could be spray foamed inside...Just not sure of my next step...anyone had this issue?
Its an even more annoying sound than my wife's china (don't ask).

[Rocky Larson]

Check to see if you have excess strap hanging down from your awning. Just leave enough to catch with the hook. Also look to see if you have a door hold back mounted on the side of the MH that is banging in the breeze. Last but not least check your steps with them in and see if there is any rattle.
Good Luck.

[88keys]

My coach door had quite a gap at the bottom which I've added some weather stripping to but beyond that, yes, there are other annoying "rattles" going on there.
We've also added a couple of additional rubber spacers between the outside door and the screen door in order to make sure that when they a coupled together, that they are tightly coupled together. They were pretty loose and flappy/clappy.

[Siesta]

Thanks Rocky and 88Keys..after checking the steps and awning and am sure its not related to them, I'm back to wondering about the screen door...I figured I'd secured it well enough with temporary things to rule it out...but its something I'll attack with more rigour now, as its the only option left and it does sound like a 'close' sound not a 'distance' clatter...must be it..