Remove the "S" dash panel to the left of the head unit
Remove the panel with the push-start button (if you have it)
Remove the panel with the USB port
They all just unclip (from memory), there may be a screw or two on the USB port one, I can't recall for sure. Its very easy, they all basically just pull off. Once the USB port panel is off it will essentially unclip from the panel piece.