Eclipse puts a TomTom IN your dash

Portable GPS navigation systems have become an attractive alternative to built-in factory systems. They offer most of the functionality, along with lower prices and the ability to take the unit with you.

At a CES preview event, Eclipse introduced its new AVN2210p in-dash head unit, which combines the advantages of portable and built-in nav systems. The AVN2210p is a double-DIN unit that provides all the usual functionality of a modern car-audio system — AM and FM, CD player with WMA/MP3 capability, and Sirius satellite radio reception (with optional tuner) — along with a detachable TomTom GPS nav unit.

When you're driving, you snap the TomTom into the front of the unit and it provides all the normal navigation functions plus serves as the display for all audio functions. When you leave the car, the TomTom can be popped out and taken with you, and still be used for navigation while walking.  (I've had that exact need a few times while trying to locate an address in a city when I can't park close to the destination.)  This setup gives you the advantages of a portable nav system without having it mounted above your dash.

As with other TomTom units, this one can be used to access optional services such as real-time traffic reports and weather reports. And the Eclipse unit has a built-in microphone for hands-free operation with Bluetooth phones, a USB connector in the front, and an optional iPod connection cable.

One downside is that the TomTom unit is specially designed to fit into the AVN2210p, so it doesn't appear that it can be used in another vehicle (such as a rental car), which is one of the attractions of a portable GPS unit.

TomTom systems, by the way, have done well in our portable GPS testing. Four models have all earned Very Good ratings, and are rated below only a couple models each from Garmin and Magellan.

The AVN2210p will be available this spring and will be priced at under $1,000.

— Rik Paul, Automotive Editor

—Rik Paul