Connecting the depth info from a Raymarine ST60 to a Garmin GPSMAP 441s chatplotter

Apr 17, 2013
153
Catalina 310 57 Pompano Beach, FL
Trying to send the data from the ST60 Tridata to a Garmin GPSMAP 441S chartplotter. I have read the manuals and it seems it is possible. I need to purchase a E85001 cable to transfer via Seatalk to nmea 0183 output which can then be wired to the Garmin nmea 0183 input. Has anyone done this. My problem is finding this cable, I have looked online and haven't had much luck. Maybe I am looking for the wrong item? Any input would be appreciated. The main reason I am looking into this is that the Tridata Display and the autopilot display are getting very hard to read they have a large black area over the data.