To find the correct wiring colors for *your* Mustang, you need to do one of the following:
* Consult your owner's manual: This is the most reliable source. Look for a section on the radio or stereo system installation. It may have a wiring diagram.
* Use a wiring harness adapter: These adapters are readily available from auto parts stores and online retailers. They connect your new stereo to the factory wiring harness, eliminating the need to identify individual wires. This is generally the easiest and safest method.
* Use a wiring diagram specific to your year and model: Online resources like the Ford forums (search for your specific year and model) or dedicated automotive wiring diagram websites might have diagrams. Be very careful using these, as incorrect information can damage your vehicle's electrical system.
* Use a multimeter: This is the most technically challenging method but can definitively identify the wires. You'll need a multimeter and understand basic electrical testing. Consult a wiring diagram or online resource to understand what voltage to expect on each wire. Caution: Incorrect use can damage your car's electrical system.
In short: Don't rely on general color codes. Use your owner's manual or a wiring harness adapter for the safest and most accurate results.