Garmin's GXM 30 smart antenna works with your compatible Garmin navigator to deliver XM Satellite Radio and XM's NavTraffic service. Along with your standard navigation functions, you'll get the endless variety XM has to offer, plus up-to-the-minute information on traffic flow along your programmed route. The GXM 30 processes all XM signals, and sends the finished product to your Garmin navigator.
For just $12.95 per month, XM delivers the best radio entertainment around, including over 150 channels of sports, news, talk, entertainment, and commercial-free music.
You can also enjoy XM's NavTraffic service for an additional $3.99 per month, or for $9.99 per month without XM Satellite Radio. It updates you on road conditions, accidents, lane closures, and delays along your route. It'll also alert you to scheduled traffic diversions sporting events, road construction, and more.
In select cities, the system even monitors in real time the current average speed on some high-traffic roads. If there's a traffic jam ahead, the system will warn you in plenty of time, and will suggest alternate routes. Not a bad way to avoid sitting in bumper-to-bumper gridlock.
Please note: XM service is available only in the lower 48 states, not available in Alaska, Hawaii, or U.S. territories. NavTraffic is currently available in most major metropolitan areas.