[CA] [CA11] St4000+ tracking Garmin MFD

[JDGALE0070]

Final question on this topic I think, what is best practice or required configuration of the MFD heading source. It has options to use GPS heading, magnetic heading (supplied by NMEA 2000 and my st4000 is supplying that through appropriate bridging devices) or both... another weird Garmin option I think....I assume that for autopilot tracking functionality, both devices should refer to the same heading source...but I’ve learned not to blindly assume anything about these devices!