Step Connecting the scanner

Connect the scanner power cable (Red and Black) to Voltage Converter output cable (Red and Black) using the supplied heat-shrink crimp connectors. DO NOT cut the scanner cable and DO NOT remove the in-line fuse located on the scanner power cable. After crimping the connections, heat the connectors to shrink the housing for a water resistant fit.

Connect the scanner to the vessel’s water ground using an 8 gauge copper cable. The scanner connection should be made on one of the four mounting studs using a M10 nut and flat washer to secure the cable.

Wiring Diagram

GMR 404/406 Marine Radar Installation Instructions