Review on 🗺️ 2019 Single Purchase Map Update for Sony NavU NVD-U21N GPS Navigators by Derrick Kadam

I am the proud owner of a Sony NVU83T. I recently updated them with the NVD-U21N 2009 map update and couldn't be happier with this update. I have tested it on my 2008 factory installed sat nav and found that it has many addresses that are not on my factory set. This map update also updates the device firmware. If you're looking to improve your already excellent Sony GPS system, this map update is for you. I highly recommend it!