JIM, with a v-8 XF, you don't need to worry about WIFI. But just for the hell of it, when you see the people around you at the track with a stem hanging out of their ears, talking to someone. That ear piece connects to the phone by WIFI. When people talk in their cars, usually thru the speakers in the newer cars, your phone connects by WIFI. It is a way to connect to other devices, and get on the internet thru a router. Good luck my friend. If I can get down your way, we will do phone science at a high rate of speed.