I just discovered my stop lights aren't working on our 1997 Marquis. I've checked the bulbs, which are good. Running lights and turn signals (rear, side, top and front) are working. I checked the fuse panel in the front bay on the drivers side and everything seems fine, except the fixture and bulb that supplies light to the bay has rusted up and not working. The rest of the bay lights on that side aren't working now either. Any ideas before I start isolating things?