We have just purchased our first RV and right away a small problem. We have a burnt out low beam headlight and it needs to be changed out. My problem is that I do not know the proper way to remove the light, the mount that holds the lights looks as though you must take the whole unit down just to replace one bulb. Obviously, I'm wrong but how do you do it the right way, Ted & Carole 2006 Monaco Camelot.