Hi Gary and welcome to JustAnswer,
Thank you for the question and your patience. Should you still need assistance for information purposes only...Initially, proposed preliminary considerations (if have not been looked at):
You would also need the actual (active) speaker pair(s).
Or HERE for a version with built-in amplifier thus can make use of regular (passive) speakers.
Please post back how you would want to approach this and/or should additional information be needed.
The last posted product can also accept speaker level input hence maybe wired in parallel to the Yamaha's speaker terminals FRONT R & L.