I don't know about which one to order. The NAS one with the chime is like 3x as much as the ROW one. try wiggling the key. You have to pull the dash cluster and then you can see if you are still getting power from the switch when it is off (they fail internally). Careful not to break the speedo cable when you pull the dash cluster.
It could be a short elsewhere, but that would be my first guess.
*not legal advice*