Okay, I have a 2009 Chevy cobalt with onstar if that matters that I’m switching to an aftermarket radio. I used an aftermarket radio harness for it. When I connected all the wires, no power. I connect the constant and the ignition wire (red&yellow) I have power to the radio but then my cluster won’t function correctly, I also have no sound at though the speakers. What do I need to do to get power as well as sound?