- 13 May 2001
- south west
i want to connect up my Garmin 120 GPS with my JRC 1000 radar and my Navico Autopilot. How do I connect up the NMEA interfaces - is it a case of just connecting the wires? and which goes to which (Output and input etc). What about earthing? The manuals offer no guidance on connecting up these instruments. Thanks in advance.