Wanted - a working Lowrance LGC-3000 or LGC-4000 GPS Puck. I have a Lowrance 27c that is not picking up Satellites on the existing LGC-3000 puck. The puck tests "OK" per the head unit (NEMA 2000 scan test), but does not find any satellites. Maybe you've had a failed head unit and have an extra puck? Let me know what you would ask for it. I am in Grand Haven. Thanks - Terry