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.

Universal Wiring Harness Instructions - Installation

Wiring of your race car or hot rod can be completed at home with these helpful automotive 12 V wiring tips.

How to Wire a Race Car | DIY Wiring Harness 101

Learn about the Speedway Motors Universal 22 Circuit Wiring Harness and the features that made it perfect for our 1967 Chevy II Nova Gasser Build.

Chevy II Nova Gasser: Week to Wicked Wiring Harness 

This Chevelle project gets rewired with a Speedway Motors 22 Circuit wiring kit.  Follow along as Jeff guides you through this application, starting with a good mounting location for the fuse box. Learn more on continuity, grounding and relays.

Installing a Speedway Motors 22 Circuit Wiring Kit

In this Tech Tip, John answers a customer question about the Speedway 12 Circuit Wiring Harness.

Speedway Economy 12 Circuit Wiring Harness

Unbox our most popular wiring harness with Tim.

Speedway Tech Talk - Unboxing Wiring Harness Kits

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!

The Best Wiring Solution for Your Hot Rod or Muscle Car Project

Speedway Motors just added some exciting new options to our line of racing harnesses.

New Racing Safety Products from Speedway Motors: Harnesses

Pat shows off how easy wiring your LS can be with our LS wiring kit.

Speedway Tech Talk - LS Wired!

Pat talks about our red solid core spark plug wire and rajah ends.

Speedway Tech Talk - Rajah Wires for Your Flathead

Engine Family Facets

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Speedway Universal Chassis Wiring Harnesses

Speedway Universal Chassis Wiring Harnesses | Speedway Motors

Shop Speedway Universal Chassis Wiring Harnesses and get Free Shipping on orders over $175 at Speedway Motors.

Speedway Universal Chassis Wiring Harnesses

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Universal 12 Circuit Wiring Harness with Install Package

Deluxe Universal 12 Circuit Wiring Harness with Install Package