If you have the walls opened up for remodeling or putting on an addition, these three boxes cover about 99 percent of your needs. The purpose of electrical boxes Wiring connections—where wires join an ...

Expert DIYer April Wilkerson teaches the basics of safe, efficient DIY electrical wiring for switches and outlets.

1. Main panel to instruments 2. Main panel to headlight/turn signal farthest from the main panel 3. Main panel to taillight farthest from main panel 4. Alternator/charging system to main panel 5.

Automotive wiring has always been perceived as a sort of ''black art" that only a few high priests of hot rodding knew much about. And the wiring harnesses and various devices installed by the car ...