I am trying to find the wire termination from fuse 100 to the Aux PDC. Did they hide it somewhere in the harness near where the Aux PDC would be installed if it had come from factory? Did they just not pin it on the connector under the main PDC but left the fuse terminals in? I have 2022 Ram 2500 6.4 hemi Tradesman so the aux PDC was not factory installed. It looks like it was used as a run relay for something related to the upfitter controls. I know there is power because it has a fuse and my lazy plow installer used a fuse leg tap as the trigger for western hand held control. See highlighted wiring diagram. It is supposed to be Pink/yellow wire.