CD Radio leads XM Satellite Radio four-to three in terms of the roster of hardware manufacturers supporting its service, though the competing digital satellite radio companies share two backers.
Alpine and Delco have a production foot in both camps, while XM Satellite has Pioneer on its own. CD Radio has an agreement with Recoton for the production of radios, adapters and mini-dish antennas, and last week the company announced it had signed on Panasonic as a radio supplier.
