Now the tricky part. We need to remove the speakers/additional control keys cover.

To do so, we need to lever the 3 pins in the battery bay (marked red). Do it gently not to brake them.

You may want to lever the marked blue pins accessible from the DVD bay, just nest to the side.

Now pull the cover.

The rest of the pins (marked yellow) will go out as you will gently pull the cover.