how to fix the radio not working in my Ford Mustang S650 (2024-Present)?

Solution

1. Preparation

• Gather tools: Multimeter, OBD-II scanner, socket set, and trim removal tools.
• Ensure the vehicle is parked, and the ignition is turned off. Disconnect the negative battery terminal to prevent any electrical shorts.

2. Check and Replace Fuses

• Locate the fuse box; refer to the owner's manual for the exact location.
• Identify the audio system fuse and check if it's blown using a multimeter.
  • If blown:
    • Replace with a fuse of the same amperage (e.g., 10A).

3. Inspect Wiring and Connectors

• Remove the radio using trim removal tools to access the back panel.
• Visually inspect the wiring harness for any signs of wear, corrosion, or loose connections.
• Ensure all connectors are securely fastened. If any are damaged, replace the wiring harness.

4. Test Power Supply

• Reconnect the negative battery terminal.
• Use a multimeter to check the voltage at the radio's power connector.
  • Expected Voltage: 12V
• If voltage is insufficient, trace wiring back to the battery and repair any issues found.

5. Factory Reset the Radio

• With the vehicle in accessory mode, navigate to the settings menu on the radio display.
• Locate the option for "Factory Reset" or "Restore Default Settings" and confirm the reset.
• Reboot the system and observe if functionality returns.