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WIRING DETAILS FOR GTR225A/B HARNESS
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Thu Dec 9 07:44:04 2021
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The Garmin GTR225A/B is an avionics stack radio that mounts in the panel.  All wiring should be measured from where the main body will be mounted allowing sufficient length for routing around the airframe and securing the wires into place.
POWER: cm GTR225A to circuit breaker/fuse.
GROUND: cm GTR225A to ground block.
PILOT HEADPHONE: cm GTR225A to pilot headphone socket.
PILOT MICROPHONE: cm GTR225A to pilot microphone socket.
COPILOT HEADPHONE: cm GTR225A to copilot headphone socket.
COPILOT MICROPHONE: cm GTR225A to copilot microphone socket.
PILOT PTT: cm GTR225A to pilot PTT switch.
COPILOT PTT: cm GTR225A to copilot PTT switch.
INTERCOM SWITCH: cm GTR225A to intercom on/off switch.
RS-232: cm GTR225A to serial device. (GPS/EFIS)
AUXILIARY AUDIO: cm GTR225A to audio (GPS/stall warn/..).
SPEAKER: cm GTR225A to cabin speaker.
LIGHTING BUS: cm GTR225A to lighting circuit.
REMOTE TUNE UP: cm GTR225A to remote tune up switch.
REMOTE TUNE DOWN: cm GTR225A to remote tune down switch.
ANTENNA CABLE: cm GTR225A to antenna (BNC-BNC)
ANY OTHER NOTES: