Possibly has an electrical draw from the radio.
The 1987 Ford F1 50 pickup truck radio has two fuses. There will be an in-line fuse behind the radio and a fuse in the fuse box.
Isuzu NPR is a truck. It takes diesel fuel and is a low cab forward truck.
It behind the left side driver wheel in a fuse box
The motto of Public Radio International is 'Hear a different voice'.
Attached to the rear of the passengers side cab mud guard. I found it after a 30 min search but I need to know where the main fuse is, can you help with this.
NPR
National Public Radio
NPR is the abbreviation for National Public Radio.
KUCI on 88.9 FM
Know, FM 91.1
National Public Radio