When I start my 09 Kia Optima the radio says Loading Sirius. It will not allow me to change the channel in that mode. And up until about two weeks ago everything else worked absolutely fine, the radio, CD player, auxiliary everything worked normal except for the satellite radio, which worked and I was using it 6 months ago. However now on top of the satellite radio not working I no longer get any sound when using my other modes and the radio doesn't pick up any stations. I have done a lot of online research with no working results. Has anybody else come up with a solution to either of these problems or do I just need a new stereo?