all my lights, trail tech run off the yellow wire with a voltage regulator, i have a AC horn that dont seem to work to good when the lights on or off, but when there on they seem to dim very slightly hardly anything really so was thinking of putting the AC horn on to the white wire if it was a power feed
cant see the stator being bad as the headlight (a 2011 headlight fitted) works perfect even on full beam just very slightly dims when i press the horn