Re: clear side marker install?
Easy to do, but don't force it. Take a small flathead screwdriver and work it carefully into the small notch behind the existing lens. Feel for the small spring clip that holds the existing lens in (I think the clip is vertical) and gently leverage the clip and the lens outward. The rear of the lens will pop free first, then just maneuver the whole lens out. Then simply replace the old lens with the clear one, and re-install. Again, the trick is to work gently to find the clip, then maneuver the screwdriver head until you feel the clip tension and release.