Focus 2012 can you add navigation ?

[Warmhearted]

Focus 2012 with MyTouch Sync Canada.
Does anyone know if navigation can be added without going through Ford ?
I am reading that a navigation SD Card contains the software and maps, so
can I get a SD Card (origional Ford) and make it work? When I go into
MyTouch settings, 'Where Am I', it give my coordinations so there but be
some type of GPS installed.
Thanks in advance.