I did that. It took two minutes. It worked flawlessly.
Sometimes to gain more command over your technology you have to give up some theoretical freedom, but that's freedom you'd never have been able to exercise.
An F-16 pilot would find the controls in a typical car so disappointing. Where's the lever to adjust the fuel/air mixture? The GPS waypoints? The brake bias dial? The air pressure indicator? The temperature of the tires? All of these things are theoretically important to driving, but they're not of any concern to someone simply trying to get from point A to point B.
That's all most people using computers are trying to do.