On my 2021 750 EPS there (4) #16awg Wires on the back of the "ACCT" Switch from Top to Bottom as if viewed from the windshield looking the vehicle. They are (top to bottom:
Or/Rd - 12vdc from Fuse 15 panel under front hood/cowling
Yel/Red - switched (above 12vdc) to Rear Driver Side Gray Plug
Blue/Brn - 12vdc from Fuse 15 panel under front hood/cowling
Red/Brn - switched (above 12vdc) Passenger Side Fender Well Gray Plug
In my case I used the switched red/Brn to trigger a Relay to Drive a 52in Curved Light Bar. I plan on using the Rear ACCY Plug to drive (2) work lights over the Bed pointing to rear. For those looking for the "elusive" Gray Plug it looks like the photo...EXCEPT there is a water proof pug blanking it off. Mine was Black