I see the picture. Those are not what I was thinking of when I imagined them. I thought they'd be all up inside the housing with the rest of the headlight stuff.
Maybe you can cut grooves into the mesh trim stuff and push them into that. Or you could mount them to the top of that opening area, more like to the silver part of your bumper, instead of the middle of the black mesh area. Maybe you'll be glad you cut nothing and you'll just sell them off used. Either way, I'm sorry they didn't work out as well as we hoped.