Over at Screenburn someone's translated the mysterious message that plays for a while on the radio. It's in Swedish and this what it says:
Close your eyes.
Let your ears listen, to the radio.
Do you hear my voice?
Can you hear your own soul's scream?
Let us choose
My voice that tells the future
Or your tortured (inaudible)
Well, what do you choose?
You can choose.
Your life, your future.
Wise as you are you might already have discovered it.
Yes, the radio drama from 75 years ago was true.
They are here on our earth and they monitor and see all.
Don't trust anyone. Don't trust the police.
They are already controlled by them.
That's the way it has been for 75 years now.
Only our best (inaudible)
You have a right. A right to become one of us.
So, welcome to our world. Very soon the gates to a new dimension will open.
The connection being made here is that "the radio drama from 75 years ago" matches up with the famous Orson Welles version of The War of The Worlds, leading many to suggest:
You have no idea how satisfying it is to use that in actual context.
It wouldn't be a huge leap of faith. Alien references, endings and other motifs criss-cross Silent Hill so the horror actually originating from an extraterrestrial dimension isn't a huge divergence from the series' cannon.
Here's the bit in question if you want to hear it: