MOPAR Off-Road Oval Fog Lamps
 

I have been having a problem with my Jeeps Fog lights since I got them. I am running the MOPAR Off-Road Oval Fog Lamps. I like them because they are better then my high beams when both are working. But one of the two is being a pain sometimes it works and sometimes it doesn't. It will flash a couple times then go off or it will work for the whole trip its 50 50 on which way it might go... I am wondering if it could be the ground wire rusting or maybe the bulb going bad. Does anyone have any idea on what it could be or how I go about taking apart these lights?