And yet another organization has come out in support of the Sirius-XM merger, this time around it comes from the conservative non-profit group American Values.

Of particular interest to American Values is the proposed "block and rebate" offering that the combined company has promised to offer.

"Especially important to our membership is the commitment the parties have made to issue refunds to satellite radio subscribers who choose to block adult-themed programming," said American Values President Gary Bauer, in his letter to the FCC. "Like so many people, the majority of our members do not want their children and families exposed to programming they may find indecent or offensive."

American Values positions themselves as a "voice to help protect life, marriage, family, faith and freedom" and particularly are against so-called indecent and violent programming. They like the "block and rebate" program as a way to not only opt out of certain channels, but also enables subscribers to not subsidize the programming they find offensive.

But what about the NAB's opposition? 

"We believe that incumbent competitors should be forced to respond to this consumer-oriented merger by making their own service offerings more attractive, and should not be able to simply obstruct advances in the marketplace in order to serve their self-interests," added Bauer.