It's a first generation TERK satellite antenna. But the point is that reception is still great.
Sirius is better than XM in every way. HUGELY better reception (3 satellites as opposed to 1), ZERO commercials on ALL music stations (as opposed to 2+ minutes of commercials per hour on XM), better selection of channels, more mainstream stations (FOX News, Discovery Channel, E!, ESPN), better talk radio stations, more support from car manufacturers.
Sirius rocks, forget about XM.