BCB, when you say open from the courtesy light, what exactly does that mean? That I can Tap in to that wire? or open like the ACC wire that is just free. Secondly, I am not sure what courtesy light you are speaking of, is there one around the dash some where? (2010 Jaguar) I love having this site!!! Even after searching for my answer and not finding exactly what I needed, less than 1 hour and I have several helpful suggestions, including one from BCB!Thanks, Britt