Doesn't matter if you've got a wheel or tiller.
Different Autopilots are produced for different set ups.
The "hidden "servo motors or Rams are a bit more difficult to install.
There are a few units with all components incorporated, as the Simrad
Wheel pilots are. Stray Magnetic fields or inductive current
near components can adversely affect compass
readings within these types of units.
But most have separate components that are linked together.
The most reliable ones use an electronic compass
mounted low in the boat
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SV Cloud Duster