hello. I am preparing for a bike trip to Asia.
In 2010 I went to South America. I had with me the 255W and I used some maps from a guy names smellybiker, he has some sort of subscription based maps. I don't know how I ended purchasing that but I wasn't quite happy because map was not so accurate.
This time I was looking to try something else.
I have 2 Nuvi 255w units.
one has sowftware worldwide autoroute dem basemap 5.00 with "CN Nort America NT 2011.10  US & Canada" map
the other one runs worldwide autoroute dem basemap 3.00 with "CN Nort America NT 2010.10  All" map
on both I browsed some asian countries and I saw only motorways displayed. No streets, local roads etc.
My experience with GPS systems and Garmin in particular is VERY limited so I was trying to find out which is the most effective (yet not too expensive) way to have decent road and geographical info for Asia.
Currently I only have the GPS receiver and cable, nothing else.
Last edited by Ballebar; 4th November 2011 at 09:21 AM. Reason: Merged 3 copies of the same post in 3 different threads
@Bavareze: As you noticed, the basemap only shows major roads and no other detail. This is because these maps are used for zoomed out views of the world and do not require such information. The detail maps (CN North America) sit atop this map.
Get the detail maps for Asia from your favorite site (Noeman.org for example), load them onto a SD card as described in the 200W tutorial Catymag linked for you and have fun.
will I be wrong to simply buy the garmin world map?
Last edited by Neil; 23rd November 2011 at 07:58 AM. Reason: added 2nd link.