IRL races on radio

Rumor has it that the IRL may sign on with a satellite radio provider for 2005. While the league has not finalized a deal yet, it is almost assured that either XM or Sirius will be carrying IRL races in 2005. With both services already represented in the IRL, it will be interesting to see which way they go. XM has a relationship with Andretti Green Racing, and Sirius is connected to Penske Racing.