I am the original owner of a 2000 Taurus SEL 3.0 DOHC which has served me extremely well over the years. There is a nagging problem with the headlights in auto mode, the headlights don't come on, only the parking lights. I have purchased a new relay switch (I suspect that is what the issue is) but have no luck finding its location. Does anyone know where there stashed. Owners manual doesn't say and my Haynes repair manual doesn't get into the specifics.