Had to revive this thread. 2nd gen member was having problems mounting a parking light and I told him there was a screw in the bottom after the light slides in to hole it in place.
Located a "how-to" video and thought I'd post the link to the video here. Pay special attention to what tools are necessary...and then watch him use the one not mentioned that is the problem the member I responded to was having. He couldn't find the phillips mounting screw. Nice lesson on how NOT to make a how-to video.
As for the clip-tool...I was going to buy one from Snap-On but I found a dandelion puller at the flea market for 25 cents...it looks like this:
not to mention you can find them around 2-to-3 feet long.