With an increasing number of new cell phones offering free, integrated turn-by-turn navigation ... TomTom and downloadable vehicles for the Garmin Nuvi. Garmin users can replace the regular ...

[JJ] picked up a Garmin Nuvi 780 GPS from an auction recently. One of the more frustrating features [JJ] ran into is it’s PIN code; this GPS can’t be unlocked unless a four-digit code is ...