I recently installed my alpine cda-9855 and the sirius sir-alp1 tuner. But for some reason when I shut off and restart the car I lose my sirius presets, but I dont lose the FM presets or cd titles. I called alpine with no help and then called Directed Electronics the company that makes the sirius tuner. They said the problem is I have to hook the 12v switched off the headunit to a better 12v ignition source because when the car is cranked it drops below 12v causing the radio to lose the sirius presets. The tuner is hooked un corectly and so is the headunit. I was wondering if anyone else has had this problem and have a fix for it. Should I go ahead and do what the tech said about the 12v switched source.