XM 50-foot extension for single-wire XM antenna

Installing a single-input XM Satellite Radio radio tuner in a home, extra-large vehicle (bus, truck, or RV), boat — or any location where the cable that came with your XM antenna isn't long enough for the job? Terk offers the problem-solving XM-EXT50 50-foot extension cable for indoor and outdoor applications. Warranty: 1 year. Note: The XM antenna is not included with this extension cable. This extension cable is only compatible with a single-input XM tuner; you'll need an adapter to connect this extension cable to an older dual-input XM tuner.