2004 Buick Rendezvous "setting sony car stereo clock" Questions

...Sony stereo. I have found 1 wiring diagram, But it seems to be off. On the factory wiring harness, It has 2 orange wires. On the diagram that I found, It only mentions 1 orange wire. it should be ...

...Sony and Pioneer will have a standard wireing system..as follows, (+Gray,-gray/back=front right)(+white,-white/black=front left)(+green,-green/black=left rear)(+purple,-purple/black=rear right) ...