Quick Start Manual

4 GHP 20 Installation Instructions
NMEA 2000 drop cable, 6 ft. (2 m) (×2)
NMEA 2000 power cable
NMEA 2000 T-connector (×3)
NMEA 2000 terminator, male
NMEA 2000 terminator, female

NMEA 2000 extension cables are available if needed. Contact
your local Garmin dealer or Garmin Product Support for ordering
information.
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Safety glasses
Drill and drill bits
3
1
/
2
in. (90 mm) hole saw
Wire cutters/strippers
Phillips and at screwdrivers
Cable ties
Waterproof wire connectors (wire nuts) or heat-shrink tubing and a
heat gun
Marine sealant
Portable or handheld compass (to test for magnetic interference
when determining the best location to install the CCU)
Anti-seize lubricant (optional)
NOTE: Mounting screws are provided for the GHC 10 and the CCU. If
the provided screws are not appropriate for the mounting surface, you
must provide the correct types of screws.