Although they look alike, you can tell the MKI from the MKII by the voice driver. The MKI has a male voice and MKII has a female voice. On the back of the unit, if there are two connections that are blue and purple then the unit is a MkII. If the connections are brown and black then the unt is a MkI.
http://www.xoutpost.com/articles/all-...ystem-faq.html
The Map CD should work.
There is no KeyCD for a Mk1 or Mk2