Car wiring diagrams: Ford Ranger Wire Diagram, wiring diagram, wire wiring harness, schematic circuit diagram, wiring diagran, wireing diagram, wirring diagram, wiring daigram, wiring diagrams. DON'T cut the factory wire harness! For easy installation of aftermarket car stereos, we suggest purchasing the wire harness that mates to the connector on this page..Ford Ranger fuse box diagram. Year of production . Fuse box in passenger comaprtment Ford Ranger fuse box in passenger compartment USA .For specific wire harness COLOR CODES for your vehicle, contact Installation Excellence. Click on DIY logo at right..