2003 BMW M5 Wire and Cable

Speedway Motors employee Jess M. talks about the custom battery tray and cables she built for her '33 Ford.

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

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!

Learn about the wiring of GM HEI Ignition Distributors with our diagrams and guide. Ensure you are getting the best performance out of your ignition system.

Learn what throttle and kickdown cables do, how to install them, and tips for troubleshooting issues like broken or stuck cables.

Watch our Steering Column Wiring Guide video for useful tips on wiring your new steering column for your vehicle. Ididit takes you through the wiring process.

Check out this headlight wiring and taillight wiring diagram.

Read how to wire a lightning sprint engine. This detailed account of how to successfully wire an engine will ensure a smooth installation.

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.

Jess M talks about the finishing touches she put on the soft top insert of her 1933 5-window Ford coupe.