There are a series of wires that run from the steering wheel controls to the radio. An electronic circuit could be used, to combine several controls into fewer wires.
At th power steering pump reservoir.
regular power steering fluid is all you need.
It probably needs steering fluid.
Power steering pump reservoir. Back of engine passenger side.
The tilt steering column was introduced in the 1963 Impala SS.
passenger side under the alternator
Top of engine on the passenger side.
Under the vehicle connected to the exhaust pipe.
on my 2001 3.8 litre the power steering pump is at the back of the engine under the alternater.
chevy impala
Add fluid at the power steering pump reservoir. Rear of engine passenger side.
behind the alternator near the firewall about 3" down