All car brands offer in-dash navigation. It's a great feature to have but it could easily set you back a couple thousand dollars. That's why portable GPS units like Alpine's PND-K3 make sense. These plug-and play devices have quickly emerged as viable and much more affordable alternatives to OEM units. This particular Bluetooth, hands-free system can be mounted on your windshield or dash. It features a 4.3-inch touch screen to clearly view maps of the U.S. and Canada. And if you're looking for a restaurant, hotel or gas station - no problem. You can quickly search six million points of interest. Verbal turn-by turn directions. But here's the kicker. Since Alpine is best known for its car stereos, the PND K3 also comes with a built-in SD card slot that plays back wma/mp3 files. So there you have it, for $550, portable navigational GEAR for the true audiophile. So even if you do get lost, you can still dance to the music.