Epiphone Casino (Natural Color) Rewiring Diagrams (P90 Pickups) (Detailed Pictures)

[niceties55]

I have been looking for a wiring diagram for an Epiphone Casino (Natural) with P90s. I got a wiring harness for the guitar, but the pickups were not soldered to the harness. (Picture 1)

I looked and found a couple of diagrams for a Casino Coupe, but the pickups on the one I have seem to be different.
These P90s have three wires, a red, white, and (what I assume) a ground. (Picture 2)
I was wondering where these three pickup wires would attach to the pots on the wiring harness?

Finally, there seems to be a black wire leading to nowhere on one of the tone pots. One end is attached to the top (ground?) of the tone pot, but the other end is loose and attached to nothing. (Picture 3)

I was wondering where that black wire was supposed to go?

Thanks a lot!

[Fathand]

Will a Les Paul P90 diagram work?

https://humbuckersoup.com/les-paul-p90-wiring-diagram/


Usually you can web search for "[guitar name] wiring diagram" and several options will appear

[Rudy4]

Since this is probably a generic wiring harness adaptable to different models, the cut black wire would be the ground that normally is attached to either a tailpiece, bridge block, or tune-o-matic bridge post.