Does anyone know the exact algorithm used for ambient lights? I suppose they turn on in dark when the doors are unlocked. But when driving at night, they appear to turn on sometimes, and I cannot seem to gather what causes it. Edit: Just checked the manual. It says they are ALWAYS on when the headlights are on. Is this really the case? I am not certain, but it seems to me that they do go off at some time, even when headlights are on.