One problem related to dash wiring has been reported for the 1999 Mazda B-series Truck. The most recently reported issues are listed below.
I went to the truck in the morning to find that there had been an electrical fire sometime between 11pm and 8am in the morning. The fire melted about 70% of the dashboard including the instrument panel, cracked the windshield, and melted the interior molding next to the drivers seat.