First thing you will need to work out, Do you need Mapping or No-Mapping, then From there you will need to work out If you need Fixed Car or Hand Held types.

Once you have just about worked it out you, might think of Some thing like I already have some maps and CAN I PUT these MAPS into your NEW GPS, well I will tell you NO, you can not, but If you have a Laptop computer you might install them in there and then connect to that mapping via a Connection from the GPS.

Now Please read below for some more Information.

Imagine driving through a new city, trying to navigate the unfamiliar streets by yourself, with only a road map to guide you. You can do it, but you'll have to take your eyes off the road constantly, and hope that the map you've got is up to date.

Now imagine driving through the streets of this unfamiliar town with a local resident sitting next to you, telling you where and when to turn. Much easier, right ?

Well, that's basically what a navigation system can do for you. Not only will it help you plot your course from city-to-city, but once you get to unfamiliar destinations, it can help you get around accurately and safely — especially since you won't have to take your eyes off the road to look at conventional maps and atlases. Or if you have a job (such as sales or trucking) that keeps you on the road, a navigation system can help you get where you need to go with total efficiency.

Riding with an expert
In-car satellite navigation systems are like regional experts — they simplify finding your way from town to town and getting around in new places (all without you having to fumble with conventional maps). These systems typically consist of a main processing unit (with CD or DVD-ROM drive) and a visual display. (Some manufacturers offer all-in-one units that slide into your dash in place of your factory radio; others offer navigation processors that install in a remote location, with a video connection to your in-dash monitor.)

The process is as easy as sliding a CD (which contains the maps you need) into the drive, programming your destination, then following the turn-by-turn directions the system gives you as you drive. You'll get visual directions on the display, along with voice prompts that tell you when to make the appropriate turns.

System basics: Navigation systems use a combination of a GPS (Global Positioning Satellite) location and tracking system, an internal, self-regulating gyroscope, and an electronic connection to your vehicle's speed sensor (or speedometer cable in older vehicles). Communicating with a GPS satellite (or several satellites, in most cases) through an external antenna, the navigation system plots your exact location every time you turn the unit on.

After you've programmed your destination, and the vehicle is in motion, the system monitors the turns you make with the internal gyroscope, keeps track of your mileage with the speed sensor connection, and continually recalculates your position by communicating with the GPS satellites.

Programming your destination: The maps used by the navigation system are stored on CDs. Each CD contains maps that cover Australia — it takes up to 1 disc to cover the entire country. (With CD-compatible systems, one disc contains map info for the entire Australia.) Most, though not all, cities and towns in each state are covered; you'll find all major and secondary roadways. (Map discs are updated often as new towns are added, and old towns are updated to accommodate road construction projects.) To plan your route, insert your destination. Your system will compute your route. (GPS must have a FIX first)

On the road: Once you've programmed your destination, you're ready to go. As you're driving, the system will give you a visual map of where you are, which includes the direction you're heading and the distance from your final destination. As a turn comes up, the map will indicate how many feet remain to make it. If there are several roads in the same area, the map will clearly indicate which is the correct one.

In addition to the map, voice prompts help you navigate, telling you exactly when to turn and how far you need to proceed down a given road. Should you make a wrong turn somewhere along the way, and can't backtrack, your system will automatically reroute you.

Many systems offer you several options as far as destinations are concerned, including specific street addresses and major points of interest, such as airports and hotels. Also, you can program your system to avoid hassles such as toll roads and ferries, and you can have the system reroute you while you're in motion if you happen to run into traffic jams or closed roads.

Around town or out on the open road
Navigation is ideal no matter if you're in or out of your home town. Have an appointment, but aren't quite sure where the building is ? Plot it! Want to take a cross-country summer vacation ? Not only can you enter your to-and-from information, you can program your system to take to you points of interest along the way. And wherever you go, you'll have peace of mind knowing you'll get there safely and efficiently.

Voiced Guided Street Navigation

• Can't find the pickup address?
• Just tap one button on the screen!
• It will talk to you and guide you to your destination!
• Voice Navigation through National parks does not work.

The integrated Navigator software includes a completely digitised roadmap system. Working together with an extremely precise GPS receiver, which uses satellites to determine your position automatically, the software frequently updates you as to your where abouts by displaying your position on a map. The Navigator not only knows where you are, it knows where you want to be, and can work out the best way to get there. A number of bright on-screen indicators and verbal instructions help you reach your destination - first time, every time.

• Easy to use, one finger operation
• Fast and reliable route planning on highly detailed up-to-date maps
• Automatic, one-second recalculation when you move off the route
• Automatic positioning and guidance by GPS; automatic zooming
• Guidance by means of clear and timely verbal instructions, symbolic arrows, and maps
• Extensive list of useful or interesting locations such as petrol stations, restaurants, ATM's, Hospitals, Post Offices, Airports, etc.
• Day / night display modes