Garmin Transducer Y-Cable Connect your Garmin transom-mount and in-hull mount transducers to a chartplotter at Crutchfield
Amazon.com: Fish Finder Mount 1.5" Ball Base for Kayak, Marine Electronic Mount for Boat, Universal Mounting Plate, Transducer Mounting Arm, Compatible with Scotty, Lowrance, Garmin Fish Finder : Electronics