XM, Sirius Bicker over New Subscriber Numbers

A recent report from The NPD Group said that Sirius had captured 56 percent of satellite retail sales in September, but XM Satellite Radio is actually still the market lead, holding a 59 percent market share in the third quarter, reports Mediaweek. The NPD Group's numbers were apparently based on the sales receipts from a subset of retail outlets, excluding many of the places where satellite radio is sold.