A friend and I are having a discussion about this. I was reading Craig's List, and I saw a listing for a stolen garmin. This made no sense to me... if they can track a vehicle when their keys are locked in the car or they're lost in the mountains, and if they can track all of us on our cell phones, then they should* be able to track a tracking* device.
My friend accepts the incongruity a lot more easily and sent me this, from a GPS forum:
Question: I had a Garmin Nuvi 350 which was stolen from my vehicle. I was wondering if there was any way I could try and track the device? Like some sort of software I could download and use on my computer ... or even an addition to my new Garmin Nuvi 660. I have the box and serial number and other unique numbers that were found on the back of the navigation device.
Answer: GPS units only receive tracking data. It is not possible to track a given unit. You should report the theft to Garmin, however, as I believe they maintain a database of stolen units, and may be able to track attempted updates of a specific serial #.