I'm getting ready to wire the ARB compressor from the cargo area. I would like to use one of the Aux switches for this. The manual says that in addition to the wires located near the battery, there are also a fused battery wire and ignition wire located in the interior. Apparently they are located somewhere on the passenger side under the instrument panel. Has anyone found these, if so, what do you have to take apart to find them?...."under the instrument panel" is not much help. Thanks....