So it looks like my Raymarine autopilot wheel actuator needs to be replaced (the outer cover is cracked as well as the black ring inside). It was working, but squeaking a bit coming back from a trip to the bay so I opened it up to rinse the salt out and found the bad news. Where is the best place to get a replacement? I looked on the Raymarine site and got zilch, some yahoo is selling one on EBay for $590, a place in the UK at 432 pounds or 519 VAT (???), and there is a new one on Amazon for $573. Is Amazon my best option?