Yeah, but he gave me a thumbs up. It was totally rad.
In any case, that's how you do it. No "rigging" or anything. You just use a ball-point pen to move that little nossle up/down/left/right inside the actual piece of plastic and that's it.
Now, I don't have one at all though. Took it off and used a small black plug, so it looks cleaner.
No more shark fin on my car!