How to play music through a STR-K7000 surround sound system?

Apart from any of the radio features. From an iPhone.
There's a slot that fits a regular jack, and one that fits a large jack, but I can get it to work. Is it even possible, and if so, what settings should I have it on?

What you do is you get a mini stereo 3.5 jack to RCA male stereo cord you hook the mini plug to the headphone jack on your i-pod and the RCA jacks to the rca in jacks on the back of the receiver… Ins and outs are not the same nor are they interchangable you must distinguish between the two…

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