The listing, Satellite Radio Car Antenna NWOT has ended.
Shazam! This antenna measures 27 feet long, and attaches to your vehicle's exterior magnetically (built in) and then you feed the wire into the vehicle through the edge of the front window, then along the dashboard, and then plug the other end into your portable satellite radio receiver. (I tucked mine into the rubber gasket along the inside edge of the door, and then in and out of the glove compartment, and then down toward the floor where I have the portable receiver hidden in a little basket near the floor between seats). This is new that I purchased to use with a used radio that ended up being junk, so Here I am with an extra antenna! My loss, your gain! New without tags or packaging.