There is apparently a Kenwood box behind the Left (or passenger side for rhd cars)rear speaker - the Musicstream unit goes via a volume box to the Kenwood amplifier and then to the speakers there is no adjustment on the Kenwood Kac -M1824 as far as I can find out.
We haven’t been able to access the Kenwood box as it’s behind the rear speakers and it isn’t clear how to get at it - request to the factory for information has yet to get a reply.
More when I have any update
Last edited by Robbie; 22/05/21 07:56 PM.