DT*: THE CONTACT STATED WHILE PARKED AND ACTIVATING THE IGNITION SWITCH, AN ARCHING CAME OFF AND BURNED THE EAR PIECE OF A CELL PHONE TRAUMATIZING THE CONTACT'S EAR. NO WARNING SIGNAL WAS PRESENT DURING THE NUMEROUS INCIDENTS. THE SPARK COULD BE HEARD AND SEEN EVERY TIME THERE WAS AN OCCURRENCE. THE VEHICLE WAS TAKEN TO THE DEALERSHIP WHO CHECKED ALL ELECTRICAL GROUNDING BUT NO DEFECTS WERE FOUND. THE MANUFACTURER WAS NOTIFIED. UPDATED 10/11/06. *JB