That speaker is not too bad. Does it sound distorted? It will get worse over time.
In your 2nd picture, closest area and to the left, you see the 3 lgs of the heat fet. To the left is the 2 fan fets, lift up capon tape and inspect.
The connector has 3 holes that are closer to one edge than the other. Make the holes closest to the frame, this allows the connector to be off the chassis more. Should be the last picture. G