Finally found the link below to hack the registry to get my BT GPS device to work with Google Mobile Maps. Works great.
http://forum.xda-developers.com/showthread.php?t=293018
This may have been posted aready, but after hacking the registry using above instruction. I followed the link above to the second page and I discovered
Live Search map. This is 10 X better than the Google Mobile Maps, without having to hack the registry in the first place. Now I have full blown Navitation system on my DASH (minus the voice) without having to purchase the expensive map solftware. Absolutely love this freebie Live Search software.