One more thing, if you have a Ray autoplilot (like 4000 or any corepack) you could also remove the convertion box and run NME directly to it. Although your AP doesn't fully translate NMEA to SeaTalk (on old unities) this arrangement will remove a suspicious box and still provide 99% of translated information, more than sufficient to what you're looking for.
Beneteau Oceanis 43
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