The outer joint. The turning stress is placed on the outer joint which causes divots to develop in the windows that that house the balls causing a clicking noise that usually is worse on a turn. The inner joint only has to account for suspension travel and is a different/ sliding design.
Take your car to a empty shopping mall lot. Go about 20 miles per our and make a fairly sharp right or left turn. There will be a clicking noise if the cv is going. Also check for Cv boot leaks or cracks.
check to see if the outer or inner boots are torn and grease is coming out. when they start to fail the axle makes a clicking noise during turning.
If you aren't moving and it is making the noise, it may be the transmission or engine. if you are moving and it makes it, it could be a joint or a worn disc brake. If you aren't moving it is definitely not a joint.
Could be a bad ball joint
It might be a CV joint, when the CV boot is ripped and the grease is partly gone , then it makes noise.
Bad inner CV joint?
Worn out bushing or steering joint probably.
It could make a grinding type noise when moving slow. A "whirrr" type whine when moving faster. The grinding noise may change to a clunking noise when turning the wheel. Any of these noises means "fix me now or else."
check powerstiring,struts, ball joint etc. it could be a number of things.good luck
could be a contant velocity joint
If it's a 4-wheel drive then it could be the axel joint / CV joint. It could also be the brake pads.
A universal joint or a CV joint may be bad. It means you should have it check before the car leaves you stranded.
CV joint(s) need replacing