ifixit.com shows the Macbook pro unibody as having a subwoofer and right channel combination repair part. It also shows this part as having 4 wires, so the Sub is probably individually controllable. It is very likely the candidate.
ifixit.com shows the Macbook pro unibody as having a subwoofer and right channel combination repair part. It also shows this part as having 4 wires, so the Sub is probably individually controllable. It is very likely the candidate.