My son and I are wiring up his jazzcaster, and we are using the attached diagram. I assumed this layout was shown from the back of the switch plate, but the tabs on our switch are opposite the diagram. Now I’m wondering if this diagram is shown from the front of the switch plate. We have it wired up now, and it doesn’t work in any position on the switch. Just hum/buzz like that noise when you plug in your guitar. Any help appreciated.