Using Vive face buttons to change volume of in game TV


I’ve been playing around with the VR preset blueprints - after picking up an object, im hoping to use it to do something specific triggered by that object - ie: pick up TV remote (this has been achieved fine), but then use facepad buttons 1 & 3 to increase or decrease the volume of audio playing off an in game TV. I have mapped my action inputs already, but now kind of stuck.

I only want to be able to do this when i am actually holding the remote in game - so im assuming (using the template), something needs to be added after the object (TV remote) mesh has been attached to the controller component.

Any thoughs from you VR devs out there!?