Where do you do add refrigerant in a 2006 mustang?

To add refrigerant to a 2006 Mustang, locate the low-pressure service port, which is typically found on the larger diameter AC line near the compressor. Remove the cap from the port and attach the refrigerant can's hose to it. Make sure the engine is running and the AC is set to the maximum cool setting while adding the refrigerant. Always follow safety precautions and check the vehicle’s specifications for the correct type and amount of refrigerant.