About This File
This is a mod that replaces your currents sirens to those of the Federal Interceptor model PA-20A's. This is the model of siren used in the movie, The Blues Brothers by the police cars. It features that iconic epic sounding siren heard during the chase seen through Chicago.
Using SparkIV, open up resident.rpf (located: Rockstar Games\Grand Theft Auto IV\pc\audio\Sfx) then import the HORNS.ivaud included with this download. Click save. That's it!
Me (simplestarwarsfan), for extracting the siren sounds from the Youtube video and manipulating them to work in GTA IV,
lightsirenman (from Youtube) for his video featuring the sounds of PA-20A Siren, without his video this mod wouldn't have been possible.