One of my stereo speakers in my boat went to speaker-heaven.
I quite violently ripped out the old one, leaving me with some surface damage .
In an a secondhand computer store i got this car speaker (4 Ohms).
With a cheap underpant I upholstered the ugly grille:
Using some scrap metal wire. I added some drops of glue, to prevent unrafeling.
Speaker: 5 Euros (yes Euro's!)
Cloth: 3 Euros