The T6EX doesn't have a 3 position switch channel, so I had to combine channel 5 and 6 to get four modes. I made it work with a pot that has double terminals for each knob position, so that way there is always 2 pins to connect cables to for a single position.
Think of this knob as a bridge between same terminals: A to A, B to B, etc, closing the circuit to ground.
Channel 6 is connected to a terminal A and a terminal B from the opposite side.
Channel 5 is connected to a terminal B and C.
This is how the pot look like:
Later, in the radio, I set up 2 PMIX mixes. they appear as PMX 1 and 2. PMX 1 it's at +70%, MAS (for master) is channel 6, SLV is channel 5, SW is channel 5.
PMX 2 is set to -60%, MAS ch6, SLV ch5, SW to ch5.
The final look:
Let me know what is not clear and I will edit this blog!