The Belkin XM Radio Auto Antenna is supposed to improve the quality of your XM signal. According to the product description, Attaches to your car with its built-in magnetic base and offers a sturdy, weather-resistant design, with a 20-foot cable for positioning.

Also only on day left on AudioVox XpressR Holiday Bundle over at SRS. The bundle includes XpressR Receiver, Car Kit, Home Kit and $30 XM Gift Card.