Hello, I've had my XF for about a month and have started to dig into a wiring issue. Passenger side license plate lamp does not work. Ground wire is fine. I am getting 12 volts from the illumination module for pin 13 gray/yellow, nothing at the license plate lamp harness. Is there a common place where this wire breaks? If someone could provide a description of where the wires run from front to back and how to get access it would be highly appreciated.