I recently swapped my factory dash bezel out for a Parts Place repop. In doing so, I replaced my heater control unit with one that had two good slides with the chrome ends. Anyway, when I replaced the unit I swapped my existing heater switch into the new plastic unit and now it’s reversed. Off is High and High is off. The 3/2 staggered plug can only plug in one way. I tried another switch (from the swapped in unit) and it too blows in reverse. Any ideas?