DIY, change the side marker light on Cadillac DeVille 1997-1999

Do it yourself, change the side marker light assembly on your Cadillac DeVille, the model made between the years 1997 and 1999. You will require a 7 mm socket wrench, with a ratchet and an extension and about 15 minutes of your time.      This particular replacement is quite easy. You should first open…