Review on Humminbird 7000301 HHGPS Connection Cable by Adam Taylor

This cable allowed me to connect a Garmin GPS V handheld to a Humminbird Matrix 27 fish finder. ] for the GPS page. I suspect the advantage is being able to display GPS information (including a graph) on the big sonar screen. I think I'll order another one of these cables and use it to connect my Garmin eTrex Vista GPS to my Matrix. 27 (with a connector other than [.]. Your GPS must have a NEMA in/out connector. Check the Settings section of your GPS.