Re: In car navigation system

It takes no more/less eye/head movement to glance for the radio knob 
than it does to look in the rear or side view mirrors. The don't have 
mirrors on the steering wheel. And if you drive the car enough, you can 
pretty much find the radio in the dark. Though I admit there are some 
that use the radio more than they do a mirror.

Dave

>If you have the dexterity to work the controls on the wheel, you can move 
>your hand 6 inches off the wheel to turn the knob up or down.  It takes a 
>fraction of a second to take your eyes off the road to spot the knob. 
>Nobody, and I mean nobody, never takes their eyes off the road for several 
>seconds every single time they drive anywhere.