Noise coming from driving on 2002 Audi A4 Quattro

Theres a noise coming from either underneath the car or under the hood when I accelerate from a stop or while turning, almost a slight whirring or moaning. I know i need brakes and maybe rotors, but is something else wrong?

Asked by for the 2002 Audi A4 Quattro
It sounds like the power steering fluid is low, possibly leaking. You should take your car in and have that checked out.