1995 C220 Fuse blows everytime i try to lock the car and dome lights go out as well
 

hi there!

i need help locating the problem in my C220.... just in the past week i noticed my door wont lock automatically when i put my key in the car to lock it, also i noticed a clicking sound coming from the driver door, it's not loud or anything, it just keeps clicking every 10 seconds or so. I'm not sure if it's the weather (40f) or what's going on. if anyone can tell me whats wrong please let me know!