I have a Navman 470 with just UK maps.
I want France as well but do not want to pay £50 for it.

What is the best and easiest upgrade to do on this device. I tried the Naviextras tool but could not get it to connect.

I do not mind whether we are looking at an IGO 8 Primo, Tom Tom or any other thirdparty software as long as I can find the install sets and instructions on what to do.

Thanks