My chimes on my 95 DeVille won't shut off when I drive with the lights on! I'm thinking an in-line fuse of a fusible link may be shot. Or maybe a control unit. Any ideas where I can check for the fuses or fusible links? Any other ideas?

It could either be a stuck door pin or the keyless module still thinks the door is open. For the fun of it, did you try removing the positive terminal of the battery, letting it sit and reconnecting.

I don't think there's a door pin in these. I think the switch in inside the door latch. That is probably the problem. They get stuck. Spray some lube in there and just keep opening and closing the door.