Another vote for John C.
You can find him on FB also.
Probably makes sense to get a Garmin system to match what you have but Simrad has been the choice for commercial guys for years for a reason.
I have an AP24 system and love it.
Also just so you know.
Far more issues with outboards because the rudder feedback mounts to the motors at the steering ram and being exposed, they really don't like salt water.
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