I found this on the GTA forums and thought some of you might like it. http://www.gtagarage...ow.php?id=22038
Siren Control Tool is a C++ Scripthook script which is extending control over your sirens.
You can disable/enable siren sound,
switch on/off automatic tone change,
sound horn while sirens are on (this feature force all vehicles on front of you to clear your way)
and set up automatic horn push on firetrucks.
Every key & interval is fully customisable.
How to customize ?
Open SirenTool.ini with notepad or other text editor.
To change key's look in to " [ CONTROLS ] " section.
You can find key ID's at the bottom of configuration file.
To set time between siren change look in to " [ TIME ] " section.
Interval is set by milisecods, that means every 1 second = 1000 miliseconds.
You can always reload configuration from file by pressing Ctrl + R so you can
find perfect timing for you sirens without turning GTA off...
To turn features ON/OFF look in to " [ SETTINGS ] " section.
Use 1 if you want feature to be used or 0 if you don't want to.