DIY cable for Hermes Lite 2 PTT

[Constrainted]

I built a prototype cable to use the Digirig v1.9 audio output to pull PTT on the Hermes Lite 2. I am using it with Quisk software.

The construction is:

Digirig side TRRS:

T - no connect
R1 - no connect
R2 - PTT
S - GND

Hermes Lite 2 side TRS:

T - no connect
R - PTT
S - GND

The schematics are:

Digirig side:

HL2 side:

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[Constrainted]

I used these terminal block cables from Amazon. They were supposed to accommodate AWG28 - AWG16, but I had a hard time with AWG18. The smaller gauges might work better. How do you prototype your 3.5mm audio cables? How would you build a finished cable but still DIY?

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