The radio does discover both at first, and I am able to switch back and forth between ipod and satellite. It is only after I have listened to one or the other for a "while" (don't know how long it takes, exactly) then the radio seems to forget the other (i.e. if I've been to Sat, I can no longer switch to ipod. The opposite is also true).

I did not remove the battery cables prior to install. I had seen some directions online that said to do this and others that did not mention this step. I followed the ones that did not mention it, and all seemed to work when everything was plugged it (at least initially).

Mike