Hello
Garmin-City-Navigator-Europe-DEU-12-10-2014-is-a-zip-free-osm

Contact: 

With Adress - Search.
Card for Trucks and
Cars.
New Card heare: http://wiki.openstreetmap.org/wiki/OSM_Transport_Karte
When your City not in function
is, can contact me over this WIKI.

One SD/Micro SD Card formated
Create a folder "Garmin" Copy this Card
"gmapsupp.img" in this folder "Garmin"
Card in the Garmin , press on, please wait, card is used. Spread the
information to many people.
Help this Card better is.
With JOSM entry please buildings and adress.Here:                                   
http://wiki.openstreetmap.org/wiki/DE:JOSM/Basic_editing#Ein_Geb.C3.A4ude_eintragen
Best Regards