[Knock Setup on G4+ Plug in - EVO 6]

The sensor goes Earth and Signal, (to the knock sensor wire, not analog input etc) because the knock sensor generates a voltage when a vibration is applied to it.

You'll want to set it to 4-10khz wideband because your engine's bore will have a knock frequency in the ~6khz range.

Realistically you'd want to get this setup for your individual motor, rather than from some base settings.
As each motor has a different background noise level, for example valvetrain noise.
And how tightly you torque down the knock sensor can affect the readings as well.
Will take an afternoon of mucking around but good fun.

I'm setting it up on my car at the moment, not an evo but can give some more detailed instructions if need be.

If I'm using the stock evo knock sensor and 86mm      Bore as well. Should be be using the same 4-10khz frequency ?