Sorry, don’t know but I do hear people complaining about the variance in subwoofer performance following software updates during the service.
Initially, when the 66 plates came out, apparently the Sub was really quiet and seemed to be out of sync with the other speakers. 2017 service update sorted but some have said that its gone back the same after this years update. A friend of a friend ripped his out and put an alpine unit in so I bought one too anyway but haven’t felt the need to fit it yet.
.
