To get started, the Cobra Mic Wiring Diagram 4 Pin contains a diagram of the four pins necessary for the device. This diagram provides clear instructions on how to connect the four-pin plug to the Cobra Mic. In addition to the wiring diagram, the Cobra Mic Wiring Diagram 4 Pin also includes a list of the necessary tools and supplies for the job.. Different manufacturers may use a different way to wire microphone. For example, Cobra 4 Pin radios are wired 1) Shield 2) Audio 3) Transmit 4) Receive while Midland 4 Pin radios are wired 1) Audio 2) Shield 3) Receive 4) Transmit. The list below offers some CB microphone wiring information.
Connecting the wire that was connected to the microphone the the shield of the white wire and using the green wire to drive a transistor to invert the sense of the switch contact, when the switch is open the transistor is on or closed. Should work and the transistor could probably be inside the microphone.. How to Wire a Cobra 4 Pin Mic. Wiring a Cobra 4-pin microphone may seem like a daunting task, but with the right instructions, it can be a straightforward process. This guide will provide you with the necessary steps to successfully wire your Cobra microphone. Step 1: Prepare the microphone. Begin by removing the microphone connector cover.