I have a 1994 DeVille. One day, I found that the interior lights came on all by themselves and had nearly drained the battery. The car hadn't been driven for over two weeks. No doors were left ajar. The weather had been extremely damp and rainy. The only way I've gotten the lights to go out is by pulling the fuse in the trunk. Exactly where is every relay switch located that has anything to do with the interior lights? Thanks.