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Connecting to Power

WARNING

When connecting the power cable, do not remove the inline fuse holder. To prevent the possibility of personal injury or product damage caused by fire or overheating, the appropriate fuse must be in place as indicated in the product specifications. Connecting the power cable without the appropriate fuse in place voids the product warranty.

You should connect the red wire to the power source through the ignition or another manual switch to turn the device on and off.

  1. Route the power cable to the power source.

    If necessary, you can extend the power cable (Power Cable Extensions).

  2. Connect the red power wire to the ignition or another manual switch, and connect the switch to the positive (+) battery terminal if necessary.
  3. Connect the black wire to the negative (−) battery terminal or to ground.

Power Cable Extensions

If necessary, you can extend the power cable using the appropriate wire gauge. You must always use marine-grade connectors or solder and water-resistant heat-shrink tubing when extending the power wires.


Wiring extensions with callouts

1

Splice

2

Extension wires (16 AWG)

3

Fuse (10 A, 32 V blade type)

4

20 cm (7 7/8 in.) portion of the original red wire containing the inline fuse

5

Power source

6

180 cm (70 7/8 in.) portion of the original power cable

7

11 m (36 ft.) maximum extension

GUID-60E76EAD-A560-449E-A528-6C89D9026DB3 v1
May 2026
© 2026 Garmin Ltd.