A new XM subscription radio car unit by Pioneer, which delivers service via satellite. This unit retails for about $250. (BOB CHAMBERLIN / Los Angeles Times)
New pay radio systems represent the first major advance in signal delivery since the 1930s.
The Pioneer GEX-FM903XM operates in conjunction with the installed AM/FM radio. (BOB CHAMBERLIN / Los Angeles Times)
The radio car unit receives the satellite signals through a short, stubby antenna that attaches magnetically to the car roof. (BOB CHAMBERLIN / Los Angeles Times)
