I know this is an old video, but I did also have this issue and was able to resolve it by removing and reseating the existing switches with some dielectric grease. For one of the vehicles where I had this issue, I simply backed off the ground screw and ran it back in and that resolved it without touching the switches
I know this is an old video, but I did also have this issue and was able to resolve it by removing and reseating the existing switches with some dielectric grease. For one of the vehicles where I had this issue, I simply backed off the ground screw and ran it back in and that resolved it without touching the switches