Why would you need a whole PC for navigation?? All you need is a Nav unit and ONE, yes 1, DVD/CD.

There are multiple aftermarket Nav units...which are proven and wouldn't require you to start wiring/mounting a laptop into the car.

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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.