Signal from a Raspberry pi to start Vincent power amplifier

I use a Raspberry pi 3B in combination with a HiFiBerry DAC2 HD for my Volumio and it works perfectly BUT I have to manually switch on the two Vincent monoblocks. Earlier I used a Bang Olufsen 9000 CD player and from that I took out a signal that started the amplifiers when I started the CD player. So question is is there any signal on any of the GPIO pins that could be used indicating that the Raspberry pi start playing or even better when the Volumio is connecting to it from the table/phone before you start playing anything

Michael Axelsson

maybe such a plugin (with tweaking?)


Thank you very much for the suggestions, looks very promising, I am new to Volumio so I have to read up how to install add ons