So easy to do!
That's why I run one of these: http://www.gpsinforad.co.uk/default.asp

I replaced the V1 with a V3 last year. The V3, although not listed is still a viable model and lives in the Mog. Unfortunately, it wouldn't work in the Boxster (metalised screen) so I bought a V4 when they were on special offer. Download the updated database around once per month. Very handy reminder just to glance at the speedo...

Cheers,

Graham (G4FUJ)

Sold L44FOR 4/4 Giallo Fly
'11 MINI Countryman Cooper D All4
'90 LR 90 SW