My wheels make a squeaking noise when making a sharp turn.

It could be the bushings on the control arms. Soak the bushings with a penetrating lubricant and see if the squeak subsides temporarily.

also insp brk calipers and pads

Is the squeaking only when the steering wheel is turned as far as it will go in either direction? Is it more closely related to the sharp turning of the steering wheel or do you have to be moving in order to get the 'squeak' to occur. Be able to duplicate the sound for whatever shop you bring it to.