Garmin AUTOPILOT TR-1 - Manual (Page 20)

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The electrical connections for the warning horn are made at the compass ball. The Black ( - ) and Red (+ ) wire on the warning
horn connect to the Blue (- ) and Orange ( + ) coming from the Compass Ball. Mount the warning horn using the cable tie and
mount with screw included in your installation kit. The wire for the warning horn can be extended using shielded two conductor
wire.
The warning horn is an audible alarm, and needs to be mounted near the helm station. It can be mounted under the dash
out of the way.
Compass
Ball
Warning
Horn
Red ( + )
Black( - ) Blue (- )
Orange ( + )
Installation Of Warning Horn