I have had my F700BT for over 3 years and I used a regular usb cable to sync up the Ipod and RCA cables to send the sound to the unit. My friend has a Pioneer system that he can plug his IPod or Iphone directly to the usb port on the unit and it will play without needing additional cables to distribute the sound. I am wondering if there is a mod to allow only the Ipod cable to sync and distribute the sound?

No.

umm, YES

Pioneer CD-IU230V Ipod Audio/Video Direct Cable For Avic-F900Bt & Avic-F700Bt

Installed this in the ex-G/f's Integra (F700bt). Works beautifully. Ipod video and sound through the dock connector.

not exactly a "mod" tho

Not to sound like a jerk but you must've read it wrong. He wants just a usb cable without the RCA which as far as I know they don't make for the Pioneer F/x series.