I just took a look and I can't clearly see much. I think I'd have to pull down the front valance to see how the fogs are mounted. If you are going to be cutting up your bumper chances are you'll also have the skill to fab up some brackets to mount to SOMETHING back there.
Wanted to just post a quick update, I wanted to control my lightbar via one of the Homelink buttons in the cab, keeps everything looking really clean with no out of place switches. The first reciever I bought seemed great, until I tried to link it to the homelink, no luck.
Found this 4 pack though which I just wired up and works perfectly!
Now I can turn them on using the remote OR using one homelink button. One press turns on, second press turns off. I now also have 3 more of these to use down the road, may wire up two spots thats came with the LED bar as reverse floods. If I do I'll throw one of these receivers on to trigger them with another button.
Just wanted to document that clearly for anyone looking to use the homelink buttons to trigger any of their lights.