Check the fluid in the Power Steering. If it is low the car will make noise when you turn the wheel.
Power Steering?
ummm power steering
An expert would have to hear the noise. Some possibilities are dry top bearing of the shocks, horn ring loose in steering wheel, tire rubbing on frame - -
It could be low fluid in the power steering pump.
If you mean "what" is making noise when you turn the steering wheel? It usaually means you need power steering fluid. If you run too long without power steering fluid it will make your power steering go out. If it is making a shuttering noise when you take sharp turns. Your rear differential may need to be serviced. I would have is burnished.
Check your power steering fluid
Power Steering Fluid Or Power Steering Pump
relay
Check your steering pump to see if you need to add more power steering fluid.
it would be in need of some lubrication Perhaps bad or weak clock-spring (real part) inside steering column
The steering gear box, probably. If it's power steering, it may be coming from the pump itself. This answer could be one of many things, if the grinding only happens while you are driving. Check to make sure your power steering fluid is full. Mine has a leak and every couple weeks it starts to grind when I turn right.
That would be the nut that holds the steering wheel to the steering shaft.