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These noises have different probable causes:
(1) A clicking noise on turns is usually from a worn outer CV joint. You can determine which side of the vehicle it is on by walking alongside the car while someone drives it slowly in a parking lot to produce the noise. The cure is to replace teh axle on the side that is making the noise with a remanufactured axle. Remanufactured axles are actually cheaper than individual CV joints, and can be purchased at most parts stores for under $100.
(2) A whining noise when turning the steering wheel is usually caused by the power steering pump. It may be low on fluid due to a leak, or the pump may simply be worn out after all these years. If there is a leak, you must locate it by doing a visual inspection and replace whatever component the leak is coming from. If the fluid is full and the pump is still noisy, you will need to replace the pump.
I would sugest having hthese things repaired soon; although this type of noise is not usually a safety issue in the short term, eventually one of these components will fail completely and leave you stranded along the road.
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