I believe the Bose came in the Silver and LE trim packages for 2012, so I think my SV is not a Bose. $2200 is outrageous for parts cost IMHO.
Also found another thread describing same problem with a picture of the aforementioned memory fuse. https://www.thenissanpath.com/viewtopic.php?t=12924
I read the white guard around the fuse was to make it easy for dealers to plug in the fuse after the car was in storage to prevent battery drain.
My gut feeling is that there may be a low voltage lockout in the head unit that trips to prevent memory loss / or corruption. When we got the car, the battery was severely corroded which might explain why ours locked its memory. Either that or there is a firmware bug in the head unit... I had the radio on (ignition switch in AUX position) when I pulled the memory fuse and I did see an indicator on the LCD display flash but cant recall what it said. Anyways the head unit apparently recognized the memory power was lost.
BTW, after resetting the memory, the head unit was able to do an initialization from the audio self diagnostics menu. Only took perhaps 10 seconds to re-boot. This put everything back to default and we were able to set it up to our liking...