How do I connect an Ipod to a 2006 Honda Accord through Auxillary Input?

The stereo on the 2006 Honda Accord has an auxillary button, and with most other cars you just buy an auillary cable from spare parts and have them install it so you can plug in an ipod, however Honda Spare Parts have been absolutely no help and do not seem to know what I am talking about. I know it is possible because why else would there be an auxillary button if there was no auxillary input somewhere in the stero.
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used honda accord
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