This guide provides a detailed rundown of how to install a Painless wiring harness in your First-Gen Mustang. Between the step-by-step instructions, detailed video, images, and factory manual, you’ll be equipped and ready to perform the installation yourself.

Wondering where to get started on your classic Mustang restoration? Here’s a collection of our best articles on how to get your restoration project started.

Troubleshooting electrical issues in your 1964-1973 Mustang can be a challenge if you don't know what you're doing. Learn how to fix electrical issues today.

Find out how the wiring harness of Fox Body Mustangs differ. Know which harness types are interchangeable and which are specific to an individual Mustang model.