The blower motor resistor on a 2006 Jeep Commander is typically located
behind the glove box. To access it, you'll likely need to remove or at least partially remove the glove box itself. There are various online tutorials and repair manuals specific to the 2006 Jeep Commander that will show you exactly how to do this. Searching YouTube for "2006 Jeep Commander blower motor resistor replacement" will likely yield helpful visual guides.
However, keep in mind that the exact location *might* vary slightly depending on trim level or specific options on your vehicle. Always refer to a repair manual specific to your year, make, and model for the most accurate information.