GTA SA Police Sound Effect Mod

[lilsalah]

I recently watched a video and it had this amazing sound effect mod and he told me he got it here from GPM here is the video from Youtube I would like to know where to get it thanks.

*HINT* Skip to 0:59 to hear it

[1nickbrick]

Talkin bout that siren? The first one that sounds loud? yeah, I like that too... I don't have it but i want it too!

[VinceKaufman]

sounds like an old siren mod that was made back in the early days of sound modding, don't know which one it is though