Wiring the Cobra Microphones 
| Model: 21, 25, 29, 89gtl,1000gtl Standard wiring: 1-Shield 2-Audio 3-Transmit 4-Receive | Model: 18RV, 19X, 19PLUS, 20PLUS Standart wiring: 1-Audio 4-Shield 2-Transmit 5-Receive 3-N/C | Model: 90, 140gtl, 142gtl,148gtl,2000gtl, 2010 Standart wiring: 1-Audio 2-Shield 3-Receive 4-Switching Wire 5-Transmit |
| Astatic wiring: 1-Shield and Blue 2-White 3-Red 4-Black | Astatic wiring: 1-White 4-Shield and Blue 2-Red 5-Black 3-N/C Yellow-N/C | Astatic wiring: 1-White 2-Shield 3-Black 4-Blue 5-Red Yellow-N/C |
| Tuner: 1-Shield and Red 2-White 3-Blue 4-Black | Tuner: 1-White 4-Shield and Blue 2-Blue 5-Black 3-N/C Yellow-N/C | Tuner: 1-White 2-Shield 3-Black 4-Red 5-Blue Yellow-N/C |
