Does anyone know what info is passed to/from the amplifier along the MOST bus?

I previously had major bluetooth connectivity issues, along with no sound (radio etc), apart from intermittent crackling sounds, intermittent camera issues, intermittent screen issues. ALL of these issues resolved as soon as I isolated the amp's MOST bus by disconnecting it from the amp and looping the loose connection back to the bus. No more issues at all. Sound works through the amp no problem, including equaliser settings.

So just wondering what functionality I may have lost, as I might be happy living without it, rather than the expense of fixing the amp.

2012 Disco IV V8