Nissan Rogue won't play music on USB stick from a MacPro

Are you sure that WAV files are supported? WAV are basically raw CD quality audio - they generally do not support ID3 tags (metadata for artist, title, artwork etc). They are also many times larger than MP3 or other compressed formats.

This seems to list mp3 files for Nissan Connect…

https://www.nissanusa.com/connect/features-app/usb-connection-port

Use iTunes to convert to MP3 files or AAC

iTunes 11 for Mac: Choose import settings

You probably want to clean out invisible files if your FAT formatting, otherwise you may get a lot of ._filename junk in the file lists…

http://zeroonetwenty.com/blueharvest/

Hi,

It likely says in the car's manual, or you can call your dealer. I have a different car maker, but mine requires formatting in FAT 32.

Besides formatting, there's the type of music file you have. IIRC, mine won't play Apple Lossless for example.