I actually JUST completed a bit of a how to for part of installing a stereo.
I also had the same unused cables as you, with the exception of the steering controls. Just tape em off and leave them! Also, black and red are NOT the power and ground cables on the female side of the stock harness!! Power is pin 2, ground is pin 19. But ground doesn't get grounded anymore since the old head unit used to ground it, if your harness is the same as mine! You will have to make a new ground the 19 pin.
Last edited by matmatician; 10-05-2012 at 12:33 AM.