Electrical, Lighting and Wiring

Learn how to wire dual electric radiator fans. Use our dual fan wiring diagram and guide to make sure you properly wire your fans to your thermostat.

Learn the importance of proper electrical grounding and how it affects not only starting, but accessories and lighting as well.

Check out this headlight wiring and taillight wiring diagram.

Crimping or soldering automotive wiring are both viable options, but in some cases, it is preferable to do one vs the other

Electrical wiring is one of those tasks that enthusiasts dread tackling on their own. We're here to tell you that wiring your project vehicle is something you can do with a little help from your friends at Speedway Motors!

Testing a 2 or 3 wire speed sensor sounds difficult, but these videos show that it actually is quite easy!

Why convert to an LED-style headlight or taillight system? Click here to find out how to do it the easy way!

Learn how to hook up a 1-wire alternator on your vehicle. 1-wire alternators are perfect for engine swaps or just keeping things simple for your project.

Modern hot rodding often blends classic looks with modern tech. Integrating current tech in custom cars can face issues like radio noise and erratic gauges due to EMI. This guide helps diagnose and repair common EMI causes.

A guide on how to install a universal wiring harness in a car. Read tips on properly wiring taillights, headlights, gauges, ignition switch, steering column and more.