You are looking for the 3.5mm TRS jack connector. You can get those from places like [http://www.mouser.com/ProductDetail/Neutrik/NYS227/?qs=sGAEpiMZZMtUKTCHc2CNRGwikkRhmJR0|mouser.com] and many others. As for the wiring, you could check [http://www.anythingbutipod.com/forum/showthread.php?t=12878|on here] to see how it's done ;-) Hope this helps, good luck
+
'''UPDATE''' take a look and see if [https://sslrelay.com/s75376715.oneandoneshop.co.uk/sess/utn;jsessionid=154eb51064c15d5/shopdata/index.shopscript?main_url=https%3A%2F%2Fsslrelay.com%2Fs75376715.oneandoneshop.co.uk%2Fsess%2Futn%3Bjsessionid%3D154eb51064c15d5%2Fshopdata%2Fproduct_overview.shopscript|this one] would work better. Check the pinout [http://pinouts.ru/PortableDevices/iphone_headphone_pinout.shtml|here] and info on the iPhone headphone [http://geekspeak.org/blog/2008/08/12/iphone-headset-plug|here]
You are looking for the 3.5mm TRS jack connector. You can get those from places like [http://www.mouser.com/ProductDetail/Neutrik/NYS227/?qs=sGAEpiMZZMtUKTCHc2CNRGwikkRhmJR0|mouser.com] and many others. As for the wiring, you could check [http://www.anythingbutipod.com/forum/showthread.php?t=12878|on here] to see how it's done ;-) Hope this helps, good luck