[DG] [DG11] NMEA 0183 to ST2000 Queston

[nssailor]

Hi,
I just bought a new plotter (B&G Vulcan 9) and am trying to integrate it (while on the hard) into my system which includes an ST2000+ tiller pilot.
The plotter goes through an Actisense converter (NGW-1 2000 to 0183) which then feeds into a Raymarine NMEA multiplexer along with wind, depth, speed, etc. from Tacktick NMEA. All seems to work well with each other, however, the 0183 stream that gets to the ST2000 from the Raymarine multiplexer output passes Bearing to Waypoint as True in RMB sentence. Variation is output from the multiplexer but in the HDG sentence which is not in the ST2000 list of recognized NMEA sentences. I have put the variation manually into the ST2000 but this does not seem to change the displayed bearing.

If the variation is programmed into the ST2000, will it steer correctly despite displaying the True bearing to waypoint? If not, assuming I can change the Actisense conversions, what would the best sentence be to provide the information needed?

Thanks for any help you can offer.
Colin