My '12 G has this loud whistling wind noise that comes from my passenger side front window. I'm thinking it's from the area around the mirror. This only happens driving into the wind at 80+mph

I've researched this for a while now and haven't found a good fix. 99% sure it's not coming from the fixed rear window, saw a good fix for that one. I even had my windshield replaced and still there (windshield replacement did fix the popping noise I had coming from it).

I've reset my power windows, checked all the trim around the car especially in that corner, car's never been wrecked, etc. Anyone had this/fixed it?

 

Same problem here, my solution was to live with it. What is common between you and I is we've had our windshields replaced.

 

I think i have the same problem that you do, an annoying whistle/high squeak from the passenger side around 75-80

No idea what it is and i've kinda just given up on it and ignore it

 

If you want to really figure out where the sound is coming from put some painters tape on the seam of the window and get up to speed and see if the sound is still there.

 

I have the same problem except I think mine is the front or rear driver side. I think it might be the seals from the outside of the window. Not too sure

 

try this... have a passenger with you when driving over 80mph or when the whistling noise starts to happen. with the window up, have your passenger gently press against the window when the whistling sound happens. If the sound goes away while pressing against the window, then it's your window that is not seated correctly. Infiniti will replace the window regulator if you go to them and mention the above symptom/fix option.
I started to hear the same thing and was going to have the dealer replace the regulator, but I added my weathertech window visors before taking the car in and the sound went away. So I didn't bother going back to the dealer.

 

I fixed my whistling noise today. Mine came from my windshield, and it also came in around 80+ mph. The rubber seal at the bottom-right of my windshield was loose, so I tape that down. Also the air inlet below the windshield was also a little loose, so I tape that down as well. After that the wind whistling noise was gone, even at 100+ mph.

 

Mine has the same whistling from my passenger window and when my gf presses on it it stops.

 

Mine is on the passenger front window. I'll try the tape. Expect mine happens at lower speeds.