external pot

I have an Up2Stream Amp 2.1 - Multiroom Wireless 2.1 Amplifier Board.
Is there any way to have an external volume potentiometer for this board ?
As you know , this type of board already has soldered potentiometers to the main board.
I have this board inside of one of my kitchen cabinets and I would like to control at least the volume with an external potentiometer.

Thank you,