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GPS navigation devices can be costly if purchased through the auto dealer. After-market systems apply the latest technological advances and mapping programs to get you where you're going without a problem. And given the progress in technology nowadays, a portable GPS can be bought for a much lower charge than dealers apply when such a device comes with the car.

Many of the portable GPS navigationdevices can be used for much more than just getting directions. Expandability features permit for numerous upgrades together with DVD, Mp3, I-pod integration, and Bluetooth. The after market units are really well worth the investment. Portable GPS navigation units are presently one type of navigation available in the market. These sorts of GPS units are mainly made to be suctioned to your windshield and powered from your car's DC outlet. The most important feature of these units is their versatility. The device can be easily unplugged to be moved from one vehicle to another.

The Garmin portable GPS systems even use rechargeable batteries, so they are portable and you do not have to worry about finding an outlet to use them. They are rechargeable; some models can go for eight hours without having to be recharged. The screens are easy to see and read, but they aren't huge, so they can fit into your travel bag or tote. Others offer other features, such as an iPod player and other audio features.

One more sort of GPS is referred as in-dash. It usually has a touch screen, allowing you manual entry of your destination information. Such a device can be installed in place of the radio that came with the car so that it is controlling the whole sound system.

With options like Bluetooth, iPod integration, satellite radio, and TV tuners, as well as systems that are designed to fit both standard, and large radios, you can build a system for any vehicle with all the options at a fraction of the cost of dealership installation.

When you load more points of interest into your unit, you will have a better chance of finding your destination easily. Already loaded onto your unit are hard drive maps. These can be easily updated by downloading new ones from your home system and using your SD Card or DVD to load them onto your hard drive. You insert the DVD, on which actual maps are located, into the system. To stay current with the changes in your area, you can purchase new updated DVDs in the future.

Now portable navigation systems are affordable no matter what your budget. It's a small price to pay for all the functionality and entertainment and the satisfaction of knowing that you will never again have to pull over and ask for directions.