anything wrong with hooking up xm AND radio to same line-in?
i've run into a little snag with my set up. I have one line-in port on my SB Live! thats currently hooked up to my hd radio tuner. I now have xm and thought i could hook that to the mic-in. Mic Ind only works if nothing is plugged into line-in. So my question is is it ok to hook both the hd radio tuner and the xm tuner to the same audio line via a splitter. I'm worried about the voltage running back basically. The HD tuner isnt powered when its not in use... but the xm line stays powered regardless.