Pio

Glad it worked. 🙂

You can use Audacity to increase the siren volume. Use the 'Amplify' function and do not increase it too much as this will cause the sound to distort. 

From a user on the GTA Forums.

I am in 100% agreement. It baffled me that Take-Two (Who I'm sure have written a legal document or two) couldn't figure out proper grammar when sending this C&D in the first place. And that the OpenIV guys only reacted to it days later via update, with no warning, and just pretty much said "bye, see ya later". 
 
My original crazy theory is that it was an attempt on GTA modding from another modder or developer to stop production of a competitor. (My theory is based on the dev for Police1013's interactions with this community, but it isn't wholly based on him.
 
And another thing. Why send a C&D to one modder, but randomly contact "Alex" (Who we still have no idea about), about changing game files 4 years after initial launch. This makes no sense.

What Rockstar and Take2 doesn't realize or care about is that most of us on this forum, and most of the people that mod GTA, only play GTA for the mods.  I previously owned GTA V on PS3.  The SOLE reason I sought after a gaming rig was FOR modding GTA.  If it wasn't for modding, I'd of never bought this game again. 
 
The stupidity is very strong here.  Why try so hard to kill something that brings new experiences and longevity to your game?  Is LSPDFR type gameplay what you wanted GTA to be? Probably not, but you need to fucking ADAPT.  Whether you like it or not, modding will always be a thing.  Get on board with it, or you'll always have a stick up your ass.

I had this problem too. If you have els installed go into the ini and change ElsTrafCtrlOn to false.