Granted your Mustang is a 2006, the process is going to be similar.
Please see the process below from the manual and let us know if you have any questions. Thanks
Images (Click to enlarge)
Jun 12, 2021 at 9:11 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.