* Owner's Manual: The most reliable source is your vehicle's owner's manual. It should have a detailed fuse box diagram showing the location of each fuse and what circuit it protects.
* Inside the Fuse Box: Often, there's a smaller diagram printed inside the cover of the fuse box itself (usually under the hood and/or in the passenger compartment). This diagram may be simpler than the one in the owner's manual but is still helpful.
* Online Resources: Websites like Ford's official website (though finding older manuals can be tricky), repair manuals sites (like Haynes or Chilton), and automotive forums dedicated to Ford Mustangs often have downloadable fuse box diagrams. Search specifically for "2000 Ford Mustang fuse box diagram" to find these resources. Be cautious to ensure the site is reputable.
* Repair Manuals: A comprehensive repair manual specific to your 2000 Ford Mustang will include detailed fuse box diagrams and other helpful information.
Remember to always disconnect the negative battery cable before working with fuses to avoid electrical shocks or damage.