I searched Google for various bin files using "hfm" "bin" and turned up some Yuotube videos of people in Brazil using your software to make money on The Delhi Connection. slimy
In the second video, it looks like some of them flash out of the car and supply 12V to the module. I guess I just need to find the pinout. The video clearly shows the pins emanating from the black and yellow wires. Edit confirms that pin 1 is 12v, pin 22 is ground. See attached pinout for both connectors in the service manual.