How is the auxillary port in 2008 honda civic SI's wired?

I want to know if the auxiliary port (1/8" stereo jack female) is wired into a harness plug that plugs into the radio or does it convert to two Male RCA style (Left and Right) plugs. I wanted to use a PIE RCA-iPD adapter to go from line level audio from the iPod/iPhone into the auxiliary port or am I going to have to do some splicing?
 
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