A033 to Garmin echomap 75,do I need a Quark protocol bridge?-----solved

[Albinatum]

Got the A033 yesterday and it works well with my digital yacht AIT1500 after swapping two NMEA wires. AIS messages shown on my tablet via WiFi.
Now, i want to connect A033 nmea output to Garmin chart plotter.How can I do since there is only one RX on Garmin chart plotter.

[admin]

Try the following connections please, I believe you will get it work.
NMEA output(+) ----------------> Echomap 75 Ground(black)
NMEA output(-) ----------------> Echomap 75 Rx(brown)