^^^ BTW - getting those lights to be a thing is a hell I don't wish on anyone.....
The stupid nutserts for the air dam were spinning. And for some reason, that tiny lightweight plastic has FOUR of them. I had to pull down the front of the headliner and cut holes in the roof crossmember support to get to the nutserts so that I could ATTEMPT to hold onto them while unscrewing from the top. Spoiler alert: That doesn't work very well either. Even with the tightest I could clamp the vice grips, I barely got the first nutsert loose. The second one I tried clamping/unscrewing for about 45 min but I couldn't get it to break, even with penetrating oil.
So naturally, I said "F it" and grinded the bolt heads off. Honestly I wish I would have done this sooner. There is no reason this stupid air damn needs 4 bolts to hold it in place. I'll just pop the plastic push-fasteners in at the top, and then doubleside tape at the bottom. Sealed up the holes with some goop. I'm never dealing with those nutserts again and I regret cutting the holes into the underside.
Yes, the airdam now has grinder marks on it. But the Xterra is tall and I think they are gonna be covered up by the lights I'm putting on. If for some reason they are a massive blight, I can just get another air damn and be done with it.