Got it working (thanks Andrey) and did a video when trying it out (sorry about the shaky mount for the Nexus 7)
[ame="http://www.youtube.com/watch?v=bXgm4KQjVwU"]catandfiddle2 - YouTube[/ame]
This is the A537 to the Cat and Fiddle, in the Peak District National Park, England.
https://maps.google.co.uk/?ll=53.252...54324&t=m&z=13
Alec