Connection Considerations

You should carefully plan the layout of the device, the power wiring, the NMEA 2000® network, and all LED lighting devices before making any connections. This is a connection overview. See the relevant connection sections for more information on particular connections.


connection diagram with callouts

1

Garmin Spectra™ LED Control Module

2

LED wiring harness

3

Power wiring harness

4

NMEA 2000 cable

5

Momentary switch (optional)

6

Appropriately rated slow-blow fuse (not included)

7

Ignition or ACC switch (recommended)

8

12 or 24 Vdc LED lighting (LED speaker in this example)

9

12 or 24 Vdc power source

When making connections, observe these considerations.

  • This device supports a maximum of 2 A per LED wiring harness. When planning lighting connections, consider the power needs of all potential load combinations to ensure that the total active load does not exceed 2 A per LED wiring harness when in use.

  • You must connect all lighting to a common ground.

  • You must make all bare wire connections using appropriately sized marine-grade, waterproof connectors or waterproof heat-shrink.

  • You must insulate any unused bare wire connections after completing installation.

  • When extending wires, you must use the appropriate wire gauge for the individual wires on the wiring harnesses.

  • To avoid interference, avoid bundling or routing speaker and LED wires together.

  • This device must connect to the same NMEA 2000 network as the chartplotter or stereo you want to use for controlling the LED lighting (NMEA 2000 Network Connection).

GUID-6A3E1D9B-1E17-4069-BF5C-3C82F2202A9B v4
September 2025