I've had a Garmin nuvi 2475, my first GPS, for 1 day and am deeply confused by many things. I've searched the internet for explanations, but all the discussions assume that you already have a lot of knowledge that a rank beginner like me doesn't have. I would appreciate help.
I'm going to use the gps for road navigation. But I would also like to be able to add other maps, especially for traveling overseas. I'm not going to use it for orienteering or anything like that.
1. The Garmin file format is IMG. What is a GPX file then?
2. Despite a zillion articles on the net, I've still no idea how to put a KMZ file on the Garmin? Do I have to convert it to IMG? How?
3. If I put a kmz file on the Garmin, will I be able to use GPS navigation like with the native maps? Example. I downloaded a London kmz file. Now what?
4. What is the basecamp program supposed to do? (Gramin has far too many different helper programs and I've no idea what they all do. They should have only 1.)
5. Can I just drag and drop maps into a device directory? (This is how it should be done.)