Retrofit Volvo V60 B&W

[IMAY2023]

According post from other friend, it looks like later AUD models generates DTCs if a speaker is disconnected or faulty. Not sure from which year though. 
My used B&W is from s90 MY18 and it does not generate any DTC if a speaker goes bad or disconnected. 

In addition, changing the to HP plus loads a different software in the IHU for sound control like surround. That application does not work properly if the AUD connected via MOST does not support it. 
 In any case, you can always give it try and put it back to original if you have issues. It's not going to burn the AUD or something.