The ARB compressors are geared to multipurpose application, ie, lockers AND using air for tires/tools. For locker operation, the switches are going to be in the cabin, and consequently, if you also want air for tires.
We should have added that this is exactly the reason behind our questions/desire for clarification. We will be running a total of three switches: 1 to control the compressor plus two more for the front and rear lockers.
If I was only using it for air, I probably would have just wired a switch under the hood as well (or just done CO2).
Has anyone else on this forum wired up a complete ARB/AOB/Locker setup?