Tetra volunteer Russ Weir in Columbus Ohio replaced the steering
wheel with a joystick so that Lindsay could manage a better grip. A
plastic platform was built around the joystick to support her arms as
she steered. A molded children's carrier seat was attached to the cab of
the truck in order to support this young girl's body.
The electronic components of the vehicle were modified to respond to
the joystick's movements and a special remote kill switch was installed
so that Lindsay's parents could stop the vehicle in an emergency. Russ
also managed to lower the speed of vehicle so that the family could
follow along at a comfortable walking pace.