Hello,
i need a cable from my Digirig Mobile to Midland 77-104
The Digirig works fine with the Xiegu - G90.
This radio will have to be interfaced through the socket for deluxe 
microphone.
Based on the schematic the pinout for the cable should look like this:
DIN5 1 (MIC) → 3.5mm TRRS ring 1 (RIG_AFIN)
DIN5 2 (PTT) → 3.5mm TRRS ring 2 (RIG_PTT)
DIN5 4 (GND) → 3.5mm TRRS sleeve (GND)
EXT. SPK tip → 3.5mm TRRS tip (RIG_AFOUT)
There may be a need for below connection, but first try without it:
DIN5 5 (receive) → DIN5 4 (GND)
Finally, just for fun, some badass 70’s Monte Carlo pictures from the transceiver manual:
