Personally I haven't had a chance to use a GPS device for the reason that my country is far behind technology of GPS. No service providers here. So I didn't explore into the field.<br /><br />To the little knowledge I know, I think Google and Live Maps should be using satelite images which are real. But the maps which you purchase for GPS units will be graphical and works with co-ordinates sent by the GPS unit.<br /><br />Regarding the pairing code, you need to refer the manual as it is definite to vary.<br /><br />PS: Its a chance for you to educate me with whole of this GPS

<br /><br /><br />Regards,<br />Cart..