So I know there are only a few keys that were originally used on coleman popups. But how many were there? Of the 2 popups I've owned they both used the same key. However, on my 2000 Mesa the same key that works in the door, the front trunk and the shower does not work in the box under the door! Prior owner had no clue the box was even there. Before I bother trying to drill out the lock I figure it might be easier/cheaper to just buy another few sets of keys until I get what I need. For some reason I have in my head that there were only 3 options?