Thats cool to know theyre tied together, the setting turns on the bright ambers (as if the turn signal was stuck on) so I would assume the same circuit is still live, Ill check anyway when I get home. I enabled it for good reason, I got into an accident at a young age, rear ended at a dead stop by an off duty deputy doing 45 without any attempt of braking. They blamed her for distracted driving since she immediately apologized to me and said she was looking at her phone. I blame the dark tinted tail lights I had on my car but they were shattered so no one could attempt to say that was the reason. Blessing in disguise for a lot of reasons but more to the point, I like to be visible so I have headlights or parking lights on at all times, When I learned of the forscan feature it allowed me to run parking lights instead of headlights to not burn down the HID bulbs, and it also enabled me to turn on the rear lights as well.