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Installation of Raymarine 4000
I installed myself with no problems. It''s been a few years, but as I recall it took about four hours. Compass alignment might take another hour or two, depending on how picky you are (involves steady turning in a circle with the boat to get the autopilot within 1-3 degrees of the magnetic compass). If you have reasonably good mechanical and electrical skills it should be no problem for a novice.
Most of the work is in running the wires, which will vary from boat to boat. As I recall, the mechanical part consists of mounting a post to the binnacle, bolting the autopilot to the wheel with supplied hardware and mounting the control head and fluxgate compass (requires drilling of holes -- a two inch hole saw for the former).
If you are planning to connect via seatalk, there will be a number of wire runs to make. Power from the circuit breaker panel to the control head. Connection from there to the autopilot motor. SeaTalk connection to the bus. Connection from the control head to the fluxgate compass (preferably located near the center of the boat in the cabin). If you want to connect a GPS via NMEA 183 (allows following a course set on the GPS, a nice gee whiz, but by no means essential) that''s yet another connection. If you have a Raymarine GPS which outputs to SeaTalk no separate connection is required.
Make sure you have a big enough circuit breaker or fuse on the panel to supply the autopilot, and that the power wire to the control head is heavy enough.