Thanks for the great/detailed response. I agree, looks like most of the strategies for replacing the bose amp/speaker should apply to the Berm.Bose sub amp / enclosure:
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Burmester sub amp / enclosure:
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Do you see a nearly $4000 difference? I don't They both fit in the same space in the car and have rather cheap drivers.
I can verify that the 2015 and 2016 Bose sub amps receive line level audio from the main amp (which is fiber optic).
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Not sure about the Burmester strategy but I do not see a MOST25 port on the sub amp. I assume they use the Bose strategy as well:
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