9. The wiring loom: if you’re using all new components, it doesn’t matter when you do this. We find that a cardboard template of the control layout helps immensely - you’re essentially seeing what the wiring looks like under the top.
So, position all the new components in the appropriate places on your template and then wire them up according to your diagram, minus the pickups at this stage.
10. Once you’re happy with the harness, remove the components from the template, and place the whole lot gently on a cloth on top of the guitar. Now you can wire the pickups on to the volume and tone pots as per your wiring diagram. Don’t forget the earth wire from the bridge/tailpiece!
Now, test everything is working by plugging in and tapping the pickups, manipulating the pots and switches. All working? Good…