What are you looking to unlock while in motion? The NAV? If so, just cut the speed sensor wire, I did it on mine and worked great. I put a switch to it just incase but never used it. If your looking to be able to add a video source and or a backup cam then check out the NAV TV ection on this forum. I was going to go with the NAV TV but then the factory nav was stolen and I went to an aftermarket unit and love it even better than the factory navigation unit.