2015 NISSAN 370Z NISMO OEM FACTORY BOSE AMPLIFIER UNIT ASSEMBLY VQ37 Z34 #7084 | eBay
I believe this is the Bose bass sub amplifier they have in my '16 Nismo, too. (Newer Bose sub enclosure no longer has the bass sub inside of it like they used to do.) I haven't started pulling trim panels out yet to look for it -- but was hoping someone knew?