I have a 2015 Versa. A friend turned the radio all the way up and then it stopped working. I thought this was a simple blown fuse, but I've checked every fuse and then I swapped every fuse with the spare fuses. No luck. Is there another fuse, I'm missing???

It's still under warranty, so I can take it into the dealer, but I thought there was a simple fix

Thx, Jim

Definitely time to take advantage of the warranty. Why bother trying to track down the issue yourself?