When I bought my NX2000, over 2 years ago, drove it for 100 miles I got a clicking sound of a CV joint that got worse. Also some bird like singing and after 10k miles suddenly the CV started to grind at 60mph for about 10 minutes and went back to chirping a bit and even to completeley silent again or atleast very very faint.
Turned out to be the CV of course but also the cookie bearing on that side failed quite rapid in a way of getting free play and I still have to replace all the parts, but I expect the singing/ chirping was the bearing but any rattling and cluncking is the CV (but it can sing too)
What surprised me the CV was all quiet in winters and on hot summer days with braking to a stand still developed a click.
As said after 10k miles the CV noise is so bad one shouldn't drive it and the cookie bearing had so much free play it was about to fall apart.
You can check cookiebearing for audible noise by turning the cookie, might need a trained ear, somebody had to explain me this turning my cookie.
Also you can check axial free play by grabing the cookie with both arms so to say and wiggle it around. turn the cookie a little and repeat to be sure I had a bearing that on 25% of the circumference of the cookie didn't show play and on the rest a lot of play
I would go with the bearing for now. I ended up both the bearing and CV ending life together. The other side, that bearing was replaced before. I'll still have to check out the CV
all at about 120k miles.