Hi. I bought a TT One 3rd Edition and learned its built-in map was for US & Canada. I bought another TT 910 that has Western Europe. Is there a way I can transfer the US & Canada map of my TT One 3rd Edition to say an SD card of my TT 910? Appreciate any suggestions if someone has done this already. I am trying to avoid having to pay for a download to my TT 910.