What Ive learned on Cruise for the coyote swap is this, modern cars use the CANBus modules via the PCM to control speed, while throttle position is possible it wont control set speed as the network also uses ABS to slow the vehicle. I understand if one is willing to install a full ABS then you can get to cruise control. you'll also need/want a transmission with built in speed sensor like a T56 magnum or youll run into idle stall issues, the early swaps learned the hard way. The speed sensor is also part of the CC curcuit Ive opted out of CC for now but would like to try as mod later once I get mine back on the road.