I have a 2006 roadster. All the wires were located in a bundle behind the passenger seat. The black/yellow/white stripes was easy to find. I had 3 brown/grey wires - only one goes to the driver door switch. The brown/pink was hard to find since it was wound in electrical tape. I had to trace it from the passenger door switch. Everything attached just as in the directions supplied with the illuminated sills.