Premise: How to install scion fr s oem fog lights<br>Using a trim removal tool or any flat plastic edge, carefully remove the factory bezel starting from the top. On the side that you are working on, turn the wheels towards the opposite direction to expose the three (3) clips that hold the fender liner on. Remove these three (3) clips and pull back the fender liner.
Hypothesis: You don't have to use a trim removal tool exactly, as any flat plastic edge will do.