I bought the adapter from my
Garmin GPS 76(?) at the website linked here:
Welcome | GPSgeek - Quality Active External GPS Antennas for
Garmin, Magellan, Navman, and Trimble
GPS Recievers
We also installed a new ICOM DSC
VHF recently and if your set up is like mine you end up having to connect 2 of the four wires coming out of the
Garmin to 2 wires on the
VHF. Check the
VHF manual carefully for their instructions.
I have the adapter and the
handheld GPS but have yet to connect the 2 up to enable the DSC features. D'oh!