scubamatt41 2017-2-3 02:12 edit
http://www.thingiverse.com/thing:31957/#files
Print this cover and place it on speaker. Location of speaker on PCB is prettymuch the same as shown in photo.
Size of speaker is the same, so cover in link fits like a glove (UP 3d printer is from Tiertime (mother company of cetus3d)
To access speaker turn cetus sideway's resting on far end of X axis and side of buildplate. Remove 4 screws and gently move black metal cover to the side. Not to far. Bare in mind the on/off switch and init.-button wires, do not disconnect them. Move black metal cover just far enough to access speaker. Place cover.