Wooden cabinet sides, and loose dash panels, can all cause squeaks and rattles. It's not right, but sometimes these things can be difficult to find. Dash squeaks can sometimes be found with a little baby powder sprinkled around to lubricate the rubbing. If it stops, you have found the area that needs further attention.
Poor weather strip sealing around the door could be causing the wind noise. You may try putting a little petroleum jelly on the door gasket and see if this helps. It will also show you if the weather gasket is making full contact with the other side. Keep in mind that if the door is a little loose on it's hinges, the air passing by, as you drive, may actually pull the door away from the coach causing air noise.