What is the best iPod connection for a 2007 Honda navi radio?

I just bought a 2007 Honda Civic Si with the navi system. I have my iPod connected to the front aux plug, but would like to know if anyone has found a better option? What does the iPod screen show if I get a cable to connect it to the back? Does it charge? I'm open to suggestions of what to do. Note also that I prefer controlling the iPod through the iPod controls, not the radio.
 
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