OK, then you have a blower motor controller unit and not a resistor. They are both located in the same place and are changed the same way but look different. The blower controller is located under the dash on the passengers side. There is a hush panel located under the dash that needs to come off, or just pulled down so you can reach the controller. Above the hush panel is the blower motor and controller. the controller is held in with 2 screws and unplugs from the blower motor. Just remove the screws and connector and replace it.
Here is the hush panel
Attachments are only available to registered users.
Here the controller
Number 2 blow is the controller