CAR WAS SITTING IN MY DRIVEWAY AND THE BACK LITHIUM ION BATTERY IN TRUNK HAD A SHORT AND STARTED ON FIRE WHILE CAR WAS OFF AND NOT PLUGGED IN. BURNT THROUGH TRUNK AND INTO BACK SEAT AND BOTH SPEAKERS ARE GONE. CAR HAS HEAVY SMOKE DAMAGE AND ALL WINDOWS ARE BAD. FOUND BATTERY HARNESS WITH COMPLETELY MELTED WHERE IT PLUGS INTO BATTERY.