It all seems to have started with a small burn mark on the lower left side of my nav screen. The burn mark has been expanding and now measures about an inch and a half. Next the radio would go silent for a few seconds then return to normal. At first the display remained on. The frequency of this condition has increased over time. Now the display goes dark when this occurs. Almost daily now the 4 wheel drive inactive fault activates corresponding with the radio issue. Several times the hazard lights activate along with the other faults. I have not searched the threads to learn if others have experienced this. Any thoughts?