Hello from England
Our 2021 Morelo has the Alpine navigator system which plays music through 4 speakers in the front of the cab.
There are also 4 more speakers in the lounge area which are unused.
If you select ‘External AP’ in the Alpine menu the sound then also comes out of the 4 speakers in the lounge, but there is no way to control the volume as the Alpine volume and mute buttons are then disabled.
Any suggestions how to control the volume in the lounge would be appreciated
Thanks