Where is blower resistor on 2006 ford five hundred?

The blower resistor on a 2006 Ford Five Hundred is typically located under the dashboard on the passenger side, near the blower motor. You may need to remove the lower dash panel or cover to access it. It's usually mounted to the HVAC housing and connected by a wiring harness. If you're having trouble locating it, consulting the vehicle's service manual can provide specific guidance.