Thank you Peter
Good luck Papa John
Thanks for that fella as it works! DesNav seems quite a good choice as the maps have sufficient detail and it's quite snappy in use/quick to load and route. Routing isn't too bad either. As with all things GPS related, the result you end up with depends entirely on the question asked of it? Plenty options available and I like the overspeed warning of the refs whistle and the fact that the point this activates can be tweaked.
Impressed with the box, I've gone and bought another much smaller box that enables phone mirroring. Don't tell the wife....
More on that story later.
Papa John.