I've been given the task on changing the software on the brother in law's satnav as the route66 software is utter gash lol!

I've downloaded the Primo files and put them on an SD card. Currently the maps run from the internal memory of the device. How do I get it to recognise the files on the SD card?

Thanks in advance

You need to use something like this to replace Route66's executable, It should be something like R66Navigate7.exe

Then reboot and start navigation (if applicable) then follow the on-screen instructions to point to iGO.

Thank you so much, Fatboy, it worked a treat!

Not a problem... :D