Theft
A permanent mount increases the chances of a break in or smash and grab, since they are a self contained unit. The factory nav has a lower risk of getting stolen because they will have to remove a lot of stuff in order to resell it to buy crack or pot. I am considering a unit that you can hide or remove from the vehicle. The tom tom 300 has the maps of the USA installed already and it can be upgraded via a usb cable and a pc.
A permanent mount increases the chances of a break in or smash and grab, since they are a self contained unit. The factory nav has a lower risk of getting stolen because they will have to remove a lot of stuff in order to resell it to buy crack or pot. I am considering a unit that you can hide or remove from the vehicle. The tom tom 300 has the maps of the USA installed already and it can be upgraded via a usb cable and a pc.