It was not an Axis or Thor for that matter, however, my class c was an E450 and it came from ford with a brake controller harness installed. It was accessible by removing the coin holder located at the top center part of the dash slightly left of the radio. This was with the standard E450 dash so again not sure about the Axis.
US Army (Ret)
2020 Entegra Accolade 37TS
2019 Jeep Grand Cherokee Trailhawk (Toad)
FMCA - F432054