Inspection Procedure 1: A Satellite Radio Cannot Be Received: Notes
WARNING: This page is about a different car, the 2008 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Before replacing the satellite radio tuner, antenna feeder, radio and CD player < vehicles with radio and CD player > or multivision display < vehicles with MMCS >, ensure that the power supply circuit, the ground circuit and the communication circuit are normal.