Needing help on a universal wire harness

[Pizzdog]

So I got universal wire harness for my 2006 Pontiac grand prix. I'm tryig to wire head unit witch is a pioneer stereo. What I have done so far is connect all the wires to the right place and nothing won't turn on or nothing. So when I took a closer look I can get it on by connecting the yellow wire's to the red wires only problem it stays on and doesn't ahut off. Someone said I have to connect the red wire to ignition? I wasn't sure what they meant by that. If anyone can help me on this please it would be nice. Getting tired of plugging and un plugging my stereo when I'm in my car.

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