I have to replace my alarm siren this weekend and need to know how to remove the headlight assembly on my 550. I looked at it and it seems to have six to eight bolts holding it in with several different brackets and pickup points. Is this right? Or is there some sort of clip in system I'm just not seeing. Before I start taking bolts and brackets off I just wanted to check the collective wisdom here to see if I'm mistaken. Also, does anyone know if when I replace the unit do I have to reprogram my fob?