Solder a wire from the of the plug to the RXD (Receive) pin on the board.
that connects to the "DATA" port on the back of the radio. Unlike many handheld radios that use dual-pin connectors, this mobile rig relies on a simple three-wire serial interface for data transfer. 🛠️ Programming Cable Pinout (3.5mm Plug) qyt kt8900 programming cable pinout top
