Standard Horizon

6.5 ACCESSORY CABLE
Wire Color/Description Connection Examples
WHITE - External Speaker (+) Connect to external 4 Ohm audio speaker
SHIELD - External Speaker (–) Connect to external 4 Ohm audio speaker
BLUE - NMEA GPS Input (+) Connect to NMEA (+) output of GPS
GREEN - NMEA GPS Input (–) Connect to NMEA (–) output or common ground of GPS
GRAY - NMEA DSC Output (+) Connect to NMEA (+) input of GPS
BROWN - NMEA GPS Output (–) Connect to NMEA (–) input of GPS
: Some GPS chart plotters have a single wire for NMEA signal ground. In such a case connect the NMEA input (–) to the GPS chart plotter’s single NMEA signal ground wire, and leave the NMEA output (–) open. In case the assignment of power supply and ground of a GPS chart plotter to be used is different from that of the radio, connect the signal ground wire of the GPS chart plotter to the ground terminal (GND) on the rear panel of the radio. When connecting the external speaker, chart plotter, or external GPS antenna, strip off about 1 inch (2.5 cm) of the specified wire’s insulation, then splice the ends together.

UNIDEN

CONNECTING THE ACCESSORY CABLE Use the accessory cable to connect the radio to a GPS receiver, a GPS chartplotter, and an external speaker.

The wiring diagram below shows the connections for each accessory.
Yellow: NMEA_IN (+)
Red: External Speaker (+)
White: NMEA_OUT(+)
Orange: N/A
Black: GND/External Speaker (-)
Brown: NMEA_OUT(-)
Bare: Shield/GND
Green: NMEA_IN (-)
ACCESSORY CABLE WIRES CONNECTS TO…
NMEA Data Output (-) or GND from GPS receiver
NMEA Data Output (+) from GPS receiver
NMEA Data Input (+) on Chartplotter
Speaker (-)/GND
Speaker (+)
NMEA Data Input (-) on Chartplotter
Connecting to a GPS Receiver
If you connect the radio to a GPS receiver, the radio can automatically transmit your current position during an automated distress call or during a normal DSC call.
Your radio supports a standard NMEA0183 input from a GPS receiver. Follow the steps below to connect your radio to your GPS receiver: 1. Connect the GREEN wire of the included accessory cable to the GPS DATA OUTPUT (-) WIRE or the GROUND WIRE on your GPS receiver.
2. Connect the YELLOW wire of the included accessory cable to the GPS DATA OUTPUT (+) WIRE on your GPS receiver.
3. Be certain all wire connections are secure and that all open wires are adequately covered. # NOTE: to extend the life of the radio, use waterproof tape to seal electrical connections.
4. Plug the accessory cable into the accessory cable pigtail on the back of your radio. GPS Verification
If the GPS receiver is correctly connected and it transmits valid data, the display shows GPS Data OK. Press ENT-1W25W to open the GPS status screen and see detailed GPS data: