After alot of fiddling, theres a few more things I don't understand.
If I plug the guitar in and I touch the outside of the jack cable I get a sharp clicking noise noise.
If I hold the green and white wires, touch the soldering joints on the pot or touch the connections on the pickup selector I get a louder buzzing sound. Instantly louder.
Also, when I took my EMG81 off, one of the connections which was a black wire was souldered to the jack output. I have three souldering joints on my jack out but only 2 are being used now. Is this correct?
Do I just need an actual volume pot instead of wiring to the tone pot? The other passive pickup (ESP/EMG LH300B) was wired up like this and I never got any noises like this.