Need some help. Have a Garmin CV52HW transducer mounted on my trolling motor. Run it thru a GPSMAP 7610. When the trolling motor is stored on the deck, my graph recognizes the transducer, but when I deploy it, it loses the connection and reverts to transmitting from the built in transducer in my Ultrex. I get a lost connection message on the graph when I deploy it. Anyone have any thoughts on what the issue might be? I'm thinking a bad cable??? Thanks in advance for your help..