Apparatus for use in an automated fuel authorization program requiring data to be dynamically retrieved from a vehicle data bus during fuel authorization

Described herein is a fuel authorization program that requires data to be dynamically retrieved from a vehicle data bus during the fuel authorization process. This can be implemented using a smart cable that is installed in enrolled vehicles. The smart cable includes a housing suitable for commercial environments, a cable to logically couple the smart cable to the vehicle data bus, a second data link to be used to logically couple the smart cable to a fuel authorization "puck" in a vehicle, and a controller. The puck handles communication with the fuel vendor. The controller automatically implements the functions responding to a query from the puck received over the second data link by dynamically acquiring data from the vehicle data bus using the first data link, and conveying the data to the puck using the second data link.