I'm in the final phase of wiring up my ARB compressor and switches in my TJ, but have run into a snag.

Where should I connect the wire that's for the switch illumination to. *my question mark doesn't work*

I've heard of wiring it to the headlamp switch so that they dim with your interior lights. Or, something about wiring it to the radio for the same effect...

Does anyone know what wires I'm looking for.

Any help would be appreciated.

Just pull power off your interior lights, so they work off of your dimmer.
A Volt meter will be the easiest way to find the wire your looking for....