"DOJ Approves Sirius/XM Merger"

"The statement also dismisses claims by HD Radio that a merged Sirius
and XM would exclude competing technology from car stereos and other
equipment."

http://tinyurl.com/32og6s

"Lack of interoperable radio key to XM+Sirius merger approval"

"In an unusually sideways argument from the US Justice Dept. this
afternoon, the fact that both XM and Sirius satellite radio services
have been unable to create an interoperable radio device for the
foreseeable future, has been put forth as evidence that a merger
between the two entities -- which the DoJ approved this afternoon --
would not reduce competition between them."

http://tinyurl.com/2ajgq6