C-Cable to connect FT-757GX to FC-757AT
| FT757GX pin | Cable colour * | Name | FC-757AT pin | |
| 1 | Black | GND | 1 | |
| 2 | Red | D | 2 | |
| 3 | White | C | 3 | |
| 4 | Orange | B | 4 | |
| 5 | Green | A | 5 | |
| 6 | Blue | TX GND | ( Not Used, do not connect ) | |
| 7 | Yellow | 13.5 volt | 7 | |
| 8 | blue | INH | 8 |
- Colour not same as original cable from Yaesu
Parts from DigiKey.com
| Description | Part # |
| CONN HOUSING XH 8POS 2.5MM | 455-1902-ND |
| CONN TERM CRIMP XH 22-28AWG | 445-1135-1-ND |
| CONN RECEPTACLE 9POS .062 | WM1236-ND |
| CONN TERM FEMALE 18-24AWG TIN | WM1001-ND |
| CABLE 7COND 24AWG BLK 5M | T1348-5-ND |
With help from https://youtu.be/ofgyspPE6CM
USE AT YOUR OWN RISK