Microphone, mobile phone (634): Connection

The microphone is supplied with power on pin 1 and sends an amplified signal on the same pin. Ground is provided on pin 3.

Fig 1: Microphone Connection Diagram

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Wiring diagram, UHP/TEL1

Fig 2: UHP/TEL1 - Wiring Diagram

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Wiring diagram, BTN/UHP

Fig 3: BTN/UHP - Wiring Diagram

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Wiring diagram, OnStar

Fig 4: OnStar - Wiring Diagram

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