Solution #1 is incorrect. Just bought on of these units at K-Mart the other day. The X3-03 uses NAVTEQ maps, it's even mentioned in the owners manual. Plus there is no CD software that comes with the unit. Plugging the unit into any PC just makes the PC make connect and disconnect alert sounds repeatedly until the unit is unplugged from the USB port. It never even asks where the driver files are.
I to contacted Nextar through email and asked about updates to the unit and maps. This was their response:
Dear Valued Nextar Customer,
We are sorry, but there are no updates or upgrades for this product at this moment. We are currently working on updates but do not have a scheduled release date. When available, the update/upgrades will be posted on our website (listed below). For now, please do not use any upgrades other than Nextar upgrades, or the product will malfunction and your warranty will be voided.
For additional questions please check out our website’s support page:
http://www. nextar. com
Thank You & Merry Christmas
Nextar Customer Service: 1-888-849-0846