ARB Twin On-Board Air Compressor CKBLTA12

First - I am very happy with the compressor itself. It works very effectively to inflate large, 4WD tires. The install instruction however, are not adequate, particularly relating to the electrical aspect of the install. The instruction provide a good level of detail if you want to use the compressor with cabin mounted switches to activate air lockers, but in my case, I did not have lockers - just wanted the compressor to inflate tires. No electrical details were provided for this use-case, and it was not obvious. I had to trawl the Internet to catch glimpses of the solution. In the end, it was easy, but getting there was torture. ARB should have provided this information because I'm sure there are plenty like me, using it without lockers.