So far all my comments have to be negative. I have a Garmin nuvi1340. I signed in on-line and activated the card but while the device product number is identified I keep getting an HTTP500 Error message and no suggestion what to do to correct it. I contacted Garmin by email on 20th April but to date have not had a reply, other than an acknowledgement. Luckily I have no plans that will need the use of the sat/nav in the next few weeks!