I mean like when the parking lights are on or the headlights. The corner lights are always on at that point.

And with the 2 relays I was thinking that it would allow the passenger puddle light to remain on until that door was opened. I thought maybe it would be better that way. And also I was reading something on the 12 volt about using diodes if I am cutting into the door trigger (alarm) wire. What are your thoughts on that? Could I get by without them with no problems?