Originally Posted by blueacid:
“It depends - depends on how the screen is designed and also on the sat nav system. Some satnavs will work fine, others won't be able to get a good lock on. You're best to check the returns policy of whichever company you buy the kit from, and see if you can return unwanted goods.
But yeah, it's really difficult to say - what kind of car is it you're driving?”
i got a magellan sat nav which i would use in my rover metro but my sat nav does not give out warnings on road blocks or low bridges or speed cams. however at the moment i have just pluged it in to my pc using my USB connection to try get downloads for it from the magellan site ,at the moment not sucessful,i might try email magellan for more information