Yup, the key the locksmith made is an ignition/door style key, different however, from my doors, and my ignition. I suspect the ignition switch has been changed, and I know the entire tailgate has been. With the key made, the lock turns, I can't take a decent pic of the guts of the mechanism, but it appears that the lock cylinder should have a pin or cam of some sort to actuate the square pin that pops up into the adapter to the regulator splines, but there's nothing there.
