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Pushed in the aux wire hard, adjusted aux in to all 3 levels still nothing. Can anyone tell me what the wires in the glovebox are and how to use them? In guessing their is something missing but I don't know what

I recently bought a second hand skoda Fabia 1.2 08 I am trying to connect my iphone to car stereo, i have tried the aux input near the handbrake and I tune to aux in on the dance unit but no sound just says aux in. The wires pictured are located in the glovebox, am i missing something here,like a box of some sort sorry if its a stupid question but as you can tell my knowledge about cars is minimal. Hope somone can shed some light. Cheers