iirc, there are two motors responsible for recirc. There's one up by the bulkhead which opens and closes the actual recirc vent (which I think is V113) and then there's one on the inlet under the waffle-grille thing. It closes the inlet as it switches to recirc so you should see that moving, but you can't see the recirc flap. I'd need to go and have a look at one to be sure.
I spliced the factory wiring for the sunroof back together where you'd inserted the switch as the current was too much for your terminals and was burning them. Might be worth checking that splice is still intact.
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