No sweat man,
the purple wire is not the problem for non-working lights though. I ashould know, as I don't even HAVE a purple wire. Mine was a standard... didn't feel those purple wires were worth my time.
Your switch is probably bad, the sliding contacts just get corroded over time. Or it's installed incorrectly but I think that might interrupt your shift lever's movement. You can always pocket a fw from the junkyard and see what works.
Happy hunting. Any questions, I'm a lot better at electrical then I am at engine and driveline
