Activation Code. I downloaded the NT 147 maps and loaded them onto a SD card for my Finedrive 350.

Question

I downloaded the NT 147 maps and loaded them onto a SD card for my Finedrive 350. When I try to load the maps I'm asked to enter an activation code. I'm then forwarded to www.navigon.com to get the code, but when I call them they say the device is not supported by them. How do I access the maps?