You have A/C and live in NZ?
Dang I live in a hot California area
and got none ÂÂ

OK, you can't use the A/C and have an air
compressor at the same time, you have to
sacrifice one for the other, unless you have
2 A/C compressors installed.
Set up the compressed air tank somewhere
on the truck, with a high pressure cutoff switch.
Wire the A/C compressor so you can turn it off
too.
Disconnect the lines and find the Low side, this
is suction, and where the air filter should go, or
if you want, pull the air in from your engine air
filter, your choice. The other side is where the tank
gets connected to, now you will also need to plumb
the air outlet to connect tools, airchuck to fill tires
as well as another one for your Air Lockers

I saw a guy here that had a 3 Gallon air tank
mounted under the sidekick above the top
control arm, enough room and out of the way.
You should also instal a check valve at the in
port on the tank, this keeps air in the tank if
the compressor has a slight leaking valve.
Good Luck
Darrin