So now that I got the Garmin 1042xsv and radar installed I directed my attention to the plus 20 yr. old Raymarine tridata. Screen is okay depth works but no speed or temp. Now I've been down this road before. Thinking it's just the transducer to find out it was the tridata itself. A new st50i tridata is somewhere around $550 to $600. Once I buy it I still have to adapt it to my Garmin. So I decided to go with a brass Furuno Airmar dts810msf that only cost $360 and a NMEA 2000 starter kit from amazon for $54. I'll leave the old tridata in the middle of my dash for now because the depth is still working.