FAILURE OF IGNITION SWITCH AND PLUG ASSEMBLY DUE TO OVERHEATING. SWITCH MELTED AND SO DID PLUG ASSEMBLY. THIS SAME REPAIR WAS PREVIOUSLY DONE AT APPROXIMATELY 100,000 MILES. WHEN VEHICLE WAS PURCHASED AT APPOXIMATELY 87,000 MILES, IT WAS OBSERVED THAT THIS REPAIR HAD BEEN DONE PREVIOUS TO THAT TIME AS WELL. THIS IS A CHRONIC FAILURE. ANY TSB'S OR RECALLS ON THIS MATTER? RELATED PROBLEM: EXCESSIVE CURRENT DRAW ON ALTERNATOR OUTPUT WIRE TO STARTER SOLENOID (BATTERY) CAUSING WIRE TO RUN HOT (WITH ALTERNATOR TURNING). THIS HAS RESULTED IN FUSIBLE LINK G BLOWING OPEN TWICE.