Anyone have any idea where the wire plugs are located that are connected to the accessory switchs that are located over head in a 2020 F-350?

 

Are you talking about the overhead console switches such as the reading lights, rear window, and sunroof switches?
If not please post a picture of what you are talking about or explain what your issue is/what you want to do.

 

Sounds like your referring to the Upfitter switches.

The customer access wires area located behind the Upfitter Relay Box, R/H (passenger side) Side of the Engine bay/Right Side Fender