Updating garmin streetpilot c340 Unmonitored video chat rooms
This is an image from a tool called Map Install, but your screen will look similar when selecting the "device" to install the maps on.
So that is the screen you will be looking for AFTER the SD card is installed in your c340.
Again, this is because the map files have GROWN to such a large size (almost 2GB now), including all of the "points of interest" that have been included (hotels, restaurants, etc.).
The installation program should do all the rest of the installation, and enable the map file for your device to use.
I have a screen shot below of what the screen will look like where you select the SD card.
In case you need a reference, I have a link to Amazon that show these cards and the going prices. By the way, don't waste any money on anything bigger than an 8GB card, as the price tends to go up after 8GB, and you will probably not need anything larger than 8GB.
Once you have that card INSTALLED in your device, you should be able to run the update program again with your device attached to the USB cable, and then "select" the SD card as the "destination" of the map files.
One other note: When you first installed the SD card in the device, you should then connect your device to the computer - via the USB cable - and make sure the computer can "see" the SD card (as a removable storage device). I knew that I could use an external SD card, but I didn't want to.Please let me know what you find or REPLY if you have more questions. I've loaded the US & Canada maps on this Street Pilot for the years 2010, 2011, 2012 without this problem.