Hi all I have a 2015 Apache 700 and the switch by the door above the step switch has stopped working. It controls the light hidden above the control panel and light above the mirror. The light works because when you unlock or lock the habitation area it illuminates for 30 secs or so. The switch is an earth switch and has a white wire with orange tracer on which is the earth feed and the other side is a white wire with a green tracer on which I assume ends up at the sargent unit to operate the light but I can’t find it? Has anyone else has this problem on a similar age Autotrail? TIA.