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Garmin GA 24TNC SiriusXM Antenna$95.00
For better reception in vehicle interiors, this external SiriusXM antenna is the answer. It comes with more than 23 feet (7 meters) of cable and TNC connector. Size 1.57" (39.9 mm) L x 1.8" (46.0 mm) W x 0.61" (15.5 mm) H.