CAR WAS PARKED APPROX 5 HOURS SELF IGNITED AT MAIN WIRING HARNESS. SMOKE AND FLAMES WERE COMING FROM UNDER THE HOOD. WE PUT FIRE OUT AND DISCONNECTED BATTERY AS WIRES WERE STILL SMOKING. INSURANCE COMPANY WAS CALLED AND APPRAISER CAME OUT BUT WILL NOT COVER AS WAS A CAUSE/DEFECT NOT COMPLETELY BURNED. *AK REFERENCED IN RQ01-002