Welcome h moffitt to the Newmar forum and irv2.

Congrats on your new Newmar and many safe miles ahead.

Check your door frame and see if the door is chaffing the frame at top or bottom. The door maybe pushed up or down so the latch is not ingageing fully when door is closed.
Norm's problem may be yours I'm afraid.
The wind thru the awning arm was fix by some foam placed in arm cavity. Also weep slots for windows if taped with some black tape has cut down wind noise, leave one slote open.
Enjoy the forums and do post often.