Motorola 13 pin connector cable

GP340/360/380
Tested on MTX850

Based on reverse engineering of the native speaker mic:

We arrive at this audio/PTT cable for Digirig:

pin1 (SP+) → 3.5mm TRRS tip (RIG_AFOUT)
pin4 (MIC) → 3.5mm TRRS ring1 (RIG_AFIN)
pin5 (PTT) → 3.5mm TRRS ring2 (RIG_PTT)
pin6 (OPT1) → 3.5mm TRRS sleeve (GND)
pin7 (GND) → 3.5mm TRRS sleeve (GND)

Additional info here:
Motorola GP3xx Series PinOut.pdf (437.6 KB)

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