I was just going to remove my Ray Marine autopilot to get it fixed, when I realized after multiple attempts that I don't know how to remove the steering wheel? Is that a nut in the middle, or some kind of cover? I treated it like it was a nut that could be screwed off. But have had no luck. Any tips or pointers would be very appreciated. As you can see, my photography skills are on par with my mechanical aptitude.
