1994 MAZDA RX-7 Electrical Systemwiringfront Underhood Problems

I WAS ON MY WAY TO WORK, DRIVING UNDER VERY NORMAL CONDITIONS. I HAD THE FOLLOWING ACCESSORIES ON AT THE TIME OF THE FIRE. HEATER, RADIO, REAR DEFROSTER, AND MAYBE THE HEADLIGHTS. I WAS STOPPED AT A TRAFFIC LIGHT WHEN SMOKE STARTED TO COME OUT FROM UNDER THE HOOD. I PULLED OVER TURNED OFF THE CAR AND SLOWLY OPENED THE HOOD TO FIND THE MAIN FUSE BOX (CONNECTED TO THE BATTERY) ON FIRE. THERE WERE FLAMES ABOUT 4-5 INCHES HIGH. I WAS ABLE TO BLOW THE FIRE OUT. I THEN LET THE CAR REST FOR ABOUT 15 MINUTES. AFTER THAT I STARTED THE CAR AND DROVE IT HOME. AFTER THE FIRE, ANY TIME ANY ELECTRICAL ACCESSORY IS TURNED ON (BLINKER, LIGHTS, HEATER, A/C, BRAKES) THE "CHARGE" AND "ABS" WARNING LIGHTS COME ON, AND SO DO THE WARNING LIGHTS BUILT INTO THE OIL PRESSURE, FUEL LEVEL, AND WATER TEMP GAUGES. THE...