pete wrote:

Mobie navigation systems cannot match up to a fully integrated one, because
they get no information from the cars motion through onboard electronics.
So, when the satellite isn't receiveable as in tunnels, they will loose
track.
Otherwise, tomtom is a good brand.

pete wrote:

Forget it. It will just distract you and you may find the laptop keys
imprinted in your forehead when the airbags have exploded due to the
accident caused ...
Seriously, a hammer is the best tool to get a nail in place. Do not try it
with a gun, never.