what would be the best style of gps to put in my vehicle to know were it is in real time? It will actually be used for my fathers car that he lets someone use that I dont trust. I know the car is being used for things other than what he is told, and he is recovering from a heart attack and gets really upset when his car is not were it is when it is supposed to be at home. So I am looking for a GPS that does not have to be wired into the car, and one without a monthly charge or a cheap fee if there has to be one. Thanks for your input.