JK Rubicon Locker Wiring

So I finished my Dana 44 swap into a Sahara. However I'm unsure of how to set up the locker. I've seen the write ups with relays and whatnot, however I'm more wondering what people used to actually connect to the factory plug on top of the differential? I don't have the rubicon wiring harness. I've heard of micro speaker terminals etc. Any ideas?

i went and bought the harness took a while since it was backordered.

I did the super easy straight to switch wiring.
Grounded the locker wires to the frame then power from a blank seat heater fuse spot in the fuse box with a add a fuse connector.
Then to some OTRATTW switches on the pillar.
So far.they have been fine. Had the rear on for about 2 hours last trip and the switch didn't even get warm.
Now if you want you dash light to.come on when locked you would need the harness. I didn't have to hook anything up to the plunger wires. Just the locker wires.