i took the speakers apart so that it was only the speakers wires transformer and circut board
i measured the speakers and marked the holes on the can, so that they are all lined up and symetrical and luckily there was a drill bit
that was the exact size needed i then filed down the edges so there wasnt any jagged edges that would tear the speakers to shreds
i then drilled the holes for the skrews to hold them in, i also at this time drilled out the holes for the cables make sure you have everythin visualized in your head thuro and dont drill out the holes untill you take the parts and hold em up to the box.
then to make sure your sound isnt interfeired mount everything completley with hot glue, or you will have to use a cloth like i did.
for the speaker gaurd i was takin apart a gasmask filter the same day and there was these round plastic screens that are the perfect size for what i needed. so i used them. then when all else was done and said, along came what you see in the pictures. and even my shop teacher was suprised at the bass and clarity of the music.