* Your Owner's Manual: The most reliable source. Check the back or inside cover for a fuse box diagram section.
* Ford's Website: Ford's official website might have owner's manuals available for download, even for older models. Search their support section.
* Online Repair Manuals: Sites like Haynes and Chilton offer repair manuals (often for a fee) that include detailed diagrams and information on fuse locations. These are usually more comprehensive than what's in the owner's manual.
* Third-Party Automotive Websites: Websites specializing in automotive repair information might have the diagram available, either for free or as part of a subscription service. Search online for "1997 Ford Mustang fuse box diagram". Be wary of sites with low-quality or unclear diagrams.
* Your Local Auto Parts Store: Stores like AutoZone, Advance Auto Parts, or NAPA often have access to online resources and might be able to print out a diagram for you, potentially even if you don't buy parts from them.
Remember that a 1997 Mustang might have multiple fuse boxes (one under the hood and one inside the cabin), so be sure to find the diagram that matches the fuse box location you are working with. Always disconnect the negative battery terminal before working on any electrical components in your car.