(DG) Connecting NMEA 0183 Version (1.5 to 2.3 ) to seatalking backbone

I have standard horizon intrepid plus vhf radio with NMEA 0183 Version (1.5 to 2.3 ) plug on its accessory cable. I want to connect this radio to my seatalk ng backbone which consists of my st 60 instruments and 6002 autopilot via seatalk to seatalking adapter kit , es75 mfd, quantum WiFi radar and ais 650. What cable (if any) do I need to do so?
Thanks in advance
George