Remove the speaker to expose the magnet.
Remove the magnet.
You’ll need a metal strip made either of iron or stainless steel.
Think hairpins, hair clips, or a metal pin out of a watch strap will all work.
If you don’t have any of those, check your first aid kit.
Take your metal piece and rub it along the magnet.
Do this for several minutes.
Your metal pin will then be magnetized.
Take your pin and lay it upon something that floats.
Like a leaf.
This will cause the leaf to rotate to point North and South.
In most cases, the pin that’s pointing furthest from the sun will be North.
That will be the opposite if in the Southern Hemisphere.