Pioneer's AVIC-X920BT not only addresses the core needs of most people, but also it's software is expandable to bring Internet radio into the car, harnesses your media library, and can help you get where you're going as economically as possible.

We're pleased with the Alpine iXA-W407's less-is-more approach to in-car entertainment. The interface is less cluttered, more responsive, and easier to navigate than the previous generation's.

The Alpine iXA-W404 shows plenty of promise, but we'll wait to see if the touch-screen interface improves with the next generation.

For people who listen primarily to MP3/WMA/AAC audio, the Alpine iDA-X305 offers one of the easiest-to-use interfaces for in-car browsing of digital media.

The vast array of features offered by the JVC El Kameleon KD-AVX44 creates a car audio experience that rivals all but the best preinstalled receivers.

The Sony Xplod CDX-GT920U offers many options for connecting to your digital music library and supports the most commonly used formats, unless your music library is on your iPod.

The Sony CDX-GT620IP is a value-for-money iPod-compatible car stereo with good usability and decent sound quality.

The Alpine CDE-9874 is a good value entry-level car stereo, perfect for those looking to play homemade MP3 discs or iPod tracks. Audiophiles might want to look a bit higher up Alpine's lineup.

The MEX-BT5100 is a good all-in-one option for those thinking of investing in a in a decent stereo and a hands-free speakerphone.

The DEH-P6000UB is a good-looking, good-sounding car stereo with great iPod support and some decent audio-tweaking options.