Like others, mine worked out of the package for my Nuvi 350 and D700. Only problem was that I kept getting error on NUVI "Accessory Not Supported". Contacted seller and was advised it may be interference. The error was happening very irregularly and could not nail down a cause, but on a recent 8 hour trip it happened every time my station was DIGI'd. Played around with the cable, and squeezed the coating over the interface to make sure all contacts were secure and have not had problem ever since. AVMAP? Not on my budget! Thanks for a terrific product.

Rating: [4 of 5 Stars!]