I have my 2010 Equinox all apart. The dash is apart, the stock radio is out, the back pannel is off. I am installing a Kicker amp and sub to the existing stock stereo, using speaker level inputs. But I can't figure out which wires to hook them to. I have been scowering the net looking for a wire diagram for the stock stereo but I can't find one. Can someone please help me?