I would almost guarantee it is associated with the vehicle. When I called BMW service because my transmission was stuck. Within seconds they told me "your located in a parking garage in Gettysburg at the corner of ... and ...". I was amazed and my car didn't have NAV (for what its worth).

I would bet a dollar that they know the VIN with the GPS signal.

On the side: I wish we could build software to use GPS to locate speed traps and commit them to your NAV so you could see the cops on the screen (go Need for Speed).

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An unwavering defender of those I see worth protecting.

"promote the general welfare, not provide the general welfare"

We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America.