2001 HYUNDAI XG300 Interior Lighting Problems

I HAVE ONGOING PROBLEMS WITH MY CAR SINCE AFTER PURCHASE IN 2007. HYUNDAI CASE #3479162 CHECK ENGINE LIGHT WAS GOING ON AND STAYING ON UNLESS THE BATTERY WOULD DIE.FAILED EMISSIONS SAID TO BE CAUSED BY AIR SENSORS BUT CODES KEPT GETTING WHIPPED OUT.CAR HAS BEEN TO DEALER COUNTLESS TIMES! CAR LUNGES THRASHING MOTION WHILE AT A STOP OR DRIVING.THE AIR BAG LIGHT STAYS ON AT ALL TIMES,THE FIRST TIME THE LUNGING HAPPENED I THOUGHT I WAS OUT OF GAS, WITH THE EXCEPTION OF THE VIOLENT THRASHING THAT OCCURRED/S. MY CARS CONTROL PANEL,HEADLIGHTS AND INTERIOR LIGHTS DIM,SHUT OFF AT WILL. ALL RADIO & CONTROL PANEL LIGHTS COME ON AND GO OFF AT ANY TIME.THE RADIO STARTS CHANGING FROM FM TO AM TO CD AT ANY GIVEN TIME INCLUDING WHILE THE CAR IS TURNED OFF AND UNATTENDED. THE TAIL LIGHTS, BRAKE LIGHTS AND RUNNING LIGHTS ALSO TURN ON/OFF BY THEMSELVES WHETHER DRIVING...

I HAVE ONGOING PROBLEMS WITH MY CAR SINCE AFTER PURCHASE IN 2007. HYUNDAI CASE #3479162 CHECK ENGINE LIGHT WAS GOING ON AND STAYING ON UNLESS THE BATTERY WOULD DIE. FAILED EMISSIONS SAID TO BE CAUSED BY AIR SENSORS BUT CODES KEPT GETTING WHIPPED OUT.CAR HAS BEEN TO DEALER COUNTLESS TIMES! CAR LUNGES THRASHING MOTION WHILE AT A STOP OR DRIVING. THE AIR BAG LIGHT STAYS ON AT ALL TIMES,THE FIRST TIME THE LUNGING HAPPENED I THOUGHT I WAS OUT OF GAS, WITH THE EXCEPTION OF THE VIOLENT THRASHING THAT OCCURED/S. MY CARS CONTROL PANEL,HEADLIGHTS AND INTERIOR LIGHTS DIM,SHUT OFF AT WILL. ALL RADIO & CONTROL PANEL LIGHTS COME ON AND GO OFF AT ANY TIME. THE RADIO STARTS CHANGING FROM FM TO AM TO CD AT ANY GIVEN TIME INCLUDING WHILE THE CAR IS TURNED OFF AND UNATTENDED. THE TAIL LIGHTS, BRAKE LIGHTS AND RUNNING LIGHTS ALSO TURN ON/OFF BY...