WHILE DRIVING AT 20 MPH CONSUMER SMELLED BURNING WIRING. PARKED THE VEHICLE, OPENED THE HOOD AND FOUND NOTHING WRONG. AT THE SAME TIME HE LOOKED TO THE REAR AND SAW A HEAVY SMOKE COMING FROM THE PASSENGER'S SIDE AND SUDDENLY VEHICLE CAUGHT ON FIRE. FIRE DEPARTMENT SHOWED UP, EXTINGUISHED THE FIRE, AND WROTE A REPORT INDICATING THERE WAS SHORT WIRE ON THE SPEAKER.*AK