It may seem an odd question but has anyone connected any digital gauges or similar to the solid grey dimmer wire in the light switch assembly?
I have a gauge that dims when the lights go off but randomly fluctuates bright again at night.
Checking the voltage on that wire it seems it doesn't stay a constant 12v in my car, it started at 7v and finally went down below 3v, at which point the gauge started acting up.
This doesn't seem like normal behaviour.