[C&P RV]

My guess is that every model is different based on the awning length / height and structure inside the wall. I know on ours we can see the internal frame on cool damp mornings as an outline where the water condenses, but I've never paid attention to the awning location in relation to those outlines.
If I were doing this, I'd get a small dowel and some epoxy and fill all the holes for the stripped screws. Let the epoxy cure, drill new pilot holes and install the screws. Cover the screws with sealant and watch closely over the next few weeks for any movement.
Good luck!