WARNING: This page is about a different car, the 2006 Mercury Milan, 2006 Lincoln Zephyr, and 2006 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Fusion shown, Milan similar.
Fig 1: Identifying Speed Control Switch Components - Fusion & Milan
Courtesy of FORD MOTOR CO.
Fig 2: Identifying Speed Control Switch Components - Zephyr