| 1 | Microphone |
| 2 | Ground |
| 3 | TX Key (Connect to Ground) |
| 4 | Program Up (Connect to Ground) |
| 5 | Program Down (Connect to Ground) |
PRESIDENT LINCOLN Accessory Connector

| 1 | Microphone |
| 2 | Ground |
| 3 | TX Key (Connect to Ground) |
| 4 | Program Up (Connect to Ground) |
| 5 | Program Down (Connect to Ground) |
PRESIDENT LINCOLN Accessory Connector
