Happens that the music can' be heard on mini

Happens very often to me that when I start the mini the music stops and comes back when landing.
It seems it is up to where I am and the same spots trigger the music and others stop it for me.
My mate still hears the music but I don't.
I don't know if this is something that can be fixed here.
But I just wanted to let you know.
The radio on the mini, for me, is kinda useless this way.

Seems it's up to where the players is near or with the mini.
I build stuff while the mini plays music but the music stops regarding on where I am atm.
Even if I am near and should hear music.
Didn't test this with other vehicles btw.
Any idea why that happens?