For anyone wanting to make a microphone circuit wiring adapter (for a headset), I ordered this item from Amazon.? It might help making the connections.? It is an adapter with an RJ45 connector, a 6 inch cable, and an 8-position screw terminal block on the other end.
RJ45 Screw Terminal,RJ45 Male to 8 Pin Screw Terminal Connector,RJ45 8p8c to 8Pin Bolt Screw Type Terminal Connector
But I have not used mine yet.
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Doug, K8RFT