Great - just ordered a new generic switch - Now - in order to wire it up correctly - looking at the original plug in my truck - what are the 4 slots?

What I mean to ask is - which slot is the "hot" which is the accessory which is the ground etc?

that way when the new switch arrives I can create a pig tail to plug into the original harness & get it right the first time.


1958 Chevy Apache 3200
bone stock 235
53k miles
3 on the tree