I am kind of disappointed with this product. I have a 2006 Ford focus 4 door ZX4- sedean. Before I buy this product, it tells me the knob would fit my car. However, when I got the product, the diameter of the green part is too big to fit in the control unit. However, the pattern fits only if you insert in to the altnerate switch on the HVAC cable where is under the steering wheel.