I have a Garmin GPSmap 4208 (8" screen) bundle and an older Garmin sonar (similar to 421, 4" screen). Both are installed and working but I don’t have the 4208 connected to a transducer yet. I want to keep dual screens.
Can I run the single transducer to both units or should I install another transducer. The transducer currently installed and functional on the 4" garmin appears to be the same for the 4208 bundle. Any thoughts?
Thanks