The Installation Manual wire color/function information on page 2-2 section 2.4 for the Multi Cable is incorrect for the NMEA 0183 output. Blue should be NMEA-TD-A and White should be NMEA-TD-B. This is shown correctly on the wiring diagram on S-1 on the last page of the manual. Pulled half my hair out trying to debug that one but thankfully it is working correctly now. Just posting in case someone else is having trouble with this.