Now when I stand on the brakes the dash lights don't dim.
I have had 'interesting' (to say the least) experiences when trying to cut multiple neutrals with 1 switch. It tends to back feed & switch a relay (or 2) on & uses the others as a earth. I initially tried wiring the headlights & fog lights in this arrangement. Then when I turned the key off, the headlights would go off like I intended, but the fog lights would then come on!mat_fenwick wrote: hidden switch into the earth wires