Section 170 (Cruise Control Systems): Cable: Description
WARNING: This page is about a different car, the 2005 Dodge Grand Caravan, 2005 Dodge Caravan, and 2005 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.
The speed control servo cable is connected between the speed control vacuum servo diaphragm and the throttle body control linkage.