Yes, the dash area connection for the courtesy lights is a pain to get to. The "C" pillar connection is a piece of cake since the harness is connected to the inner metal structure via a clip and just hangs right where the courtesy light opening in the sail panels is. The lead attached to the light is only a couple of inches but it's no problem making the connection.Hi Jeff, and thanks for that useful info. I've noticed the blue/black leads in the 69 Mustang wiring diagram I have. If the leads on the light are short, the connections must be pretty close to one of the most inaccesible parts of the harness! There's not much room for cat swinging in the wheelhouse area, is there? Your '70 looks beautiful, by the way. Is that Competition blue because it almost looks as though it has a little green in it.