Remove the glove box and you will see the back of the fan motor. There are two sets of wires, unclip them,now lie on your back with your head under the dash. put your hands onto the back of the fan motor and turn the whole unit ( i am not sure which direction ) but if you use a torch and look you will see the lugs. once you have turned the unit it will come out. remove the small screw at the back of the fan and the fan and motor will slide out of the plastic cowl. you will see an aluminuim thing with lots of round probes. that is the resistor pack. good luck
Leon Collatz
February 2011