The PIAA led Fog Lights make an attractive addition to the front of an SV, much better than the black plugs. I wired mine as Daytime Running Lights (per GEEK EVs post) because they take so little power. I aimed them carefully so as not to blind anyone. I think they add to my visibility (being seen by others).
The procedure is easy. I raised the car on one front corner with a floor jack and a little wooden adapter described in these pages. I removed Front Under Cover per EXT-21 in the shop manual (just 5 bolts and about 6 push pins, easy). The black plastic hole covers come loose with one more bolt each. The PIAA light fits right in and can peek out the front like a real SL.
I cut the black plug out with a Dremel tool, leaving a little edge around for trim. Work in progress is shown. You could cut it all out, so the chrome on the light but no black shows out front.
I formed a flat aluminum piece to fit inside the upper leg of the factory plastic piece and added a slight bend to reach to the PIAA bracket. The front hole in my bracket takes the original bolt that retains the black plastic piece to the car. I used one bolt to attach the PIAA bracket to mine. I didn't push the light all the way forward into the plastic piece so there was room for adjustment.
Before you button up the Front Under Cover, lower the car back down and aim the little guys per the PIAA instructions (a hair lower than horizontal). Snug bolts will still allow a little movement. Button it up and enjoy.