Thanks guys! I did snap a pic, it's a little hard to tell, but I used a universal bracket from Amazon and ended up drilling into a blank tab as seen in be picture.
The brackets are secure and snug, but being that there is only one beam to support the light, you can see the fast/small vibration of the light when driving. It's not distracting, and is hardly noticeable, but you can see it.
Good news, is that I thought I would get noise - whether it be the brackets or wind, but no noise at all.