Tropici; pictures, pictures, show us the procedure/DIY, thanks..
Okay, since you asked, and its a new year...
The blank in the OEM bumper has a circular ridge around 3" diamenter, with horizontal ribs. The lights I bought were around that size.
Removal of bumper is not necessary.
Only having a hole saw 2.5" (for house door knobs), I started with that, then a rasp to carefully open the hole to the size such that my lights would NOT go through, but seat comfortably on the rim of the light unit. This is where lots of planning comes in. Over size the hole and you are into a new problem. Leave the edge of the hole rough. I already had a tube of black window adhesive from a reinstall of the Solstice back window when it started separating... since my repair held on that, I felt comfortable with the product. It is a messy process, but overages once cured, can be easily scraped off. (except your fingers. wear latex gloves, but even that will not keep it all off your hands
Before installing lights, there is a nice more or less vertical passage to fish wires from behind the fog light hole to the top of the headlight and hood deck support posts on each side.
Slather a generous ring of the black adhesive around the cut hole, and a ring around the fog light. With the wires attached, press the glue prepared unit into place and hold for a few minutes. If cut right it should stay put. If not, some masking tape or such. Let it cure a good 12 hours or more. Once it is cured, any black goop on glass or bumper surfaces will just rub off. The seal were the lamp and the bumper hole, will set to a very rigid compound... it does hold windshield glass in place... but if you ever have to remove or replave, the compund can be cut with moderate difficulty and cleanly pealed away, leaving surfaces as they first were before installation.
Because I was using LED, which draw very little current, I merely soldered them to the two wires for the amber side marker (park) light. Remove the bulb will get you enough slack to carefull peal away enough wire cover without cutting the entire wire, to solder the fine LED wires. Make sure you have correct polarity or else the lights don't work.