Well, if you’re always getting lost and want an affordable GPS navigation system, you won’t go too wrong with the $169. 6 million points of interest, an SD memory card slot, text-to-speech functionality, audio and video playback alongside the bundled live traffic receiver. 99 Nextar 43LT. Nextar has rolled out its 43LT nav unit that offers free live traffic updates alongside fancy 3D graphics. Apart from that, you will benefit from a 4. 3″ display alongside 1.