Left front fog light is out. Took out bulb and tested with a battery and worked fine. Some random tail-lights have gone out and replaced no issue. Now my right side head light (service) is out and says it is dipped. This is becoming a real pain in the ***. One of the DIAG's was to turn car to on (not started) and listen for the ballast hum. Right side had no hum. I am really not looking forward a service call that cost hundreds of dollars. Anyone have any thoughts. I have google issue and there are a boat load of people who have had or having similar issues. HELP PLEASE!