Improved Siren Mod 3.0

A mod that adds rumblers, warnings and custom siren for every car

  1. jojos38
    |------------------------------------------------ Features ------------------------------------------------|

    Improved Siren Mod
    This mod adds a whole bunch of new sirens sounds and rumblers for every stock police vehicles in the game.

    If you want to support my work you can do it here! on Paypal (or

    Any request of a siren to add or improve? Send me a message and I'll see what I can do

    Forum link: Released - Improved Siren Mod

    • Multiplayer compatible*
    • Custom siren
    • Up to two different rumblers
    • A warning siren
    • A police horn
    • Ability to select the siren you want for each vehicle
    • Ability to have your own custom sounds and configurations for each vehicle
    • Works on modded vehicles and custom configurations**
    • Key binds in the settings
    • Two UI apps to customize vehicles sirens and control the siren from the UI
    *If you don't download the mod client side you won't be able to use keybinds but only the UI apps

    **You need to manually select a configuration and save it using the save button with the UI app in order for a modded or custom vehicle to have a siren. (See how to use Sounds selector app)


    Github: jojos38/Improved-Siren-Mod (
    |----------------------------------------------- Installation -----------------------------------------------|

    Press the subscribe button
    Put the zip file in your Documents/ folder
    |----------------------------------------------- How to use -----------------------------------------------|

    How to use:

    • Bind your keys:
      Install the mod and open your game, go to settings -> controls -> vehicle and bind every key that you want to use
    • Enable chase mod:
      Chase Mode needs to be enabled in order to toggle sirens, rumblers and warning siren
      It's enabled as soon as the lightbar is on and default game's siren is off
      In order to enable chase mode you can either use the default lightbar key from the game or use the Chase Mode key from the mod
    • Use the UI apps
      Control app
      To use the control app, simply add it on the UI and press the buttons to use the functions
      Sounds selector app
      Simply add the app on the UI and select the sound you want for the vehicle you are in.
      Pressing the save button will remember the preset for the selected vehicle
    |------------------------------------------------ Questions -----------------------------------------------|

    Important: All presets are made inside the file for more versatility, but this comes at a cost any mod update will remove your presets, so make sure to save them somewhere!

    Video tutorial:
    (Pause the video if it's going too fast)

    Text tutorial:
    First step open the file and go to presets, duplicate the .Default.json file and rename it to the name of your preset. For example: My Custom Preset.json

    Then, open the file you just create and modify the path of the sounds.
    Sounds are located in

    So let's say you want to add duck.ogg sound, put the sound in and inside the preset json file you gonna put "sound": "mysound/duck.ogg".

    Note: wav sounds also work, I guess other sounds work but I don't have a list of compatible formats. volume management is not in pair with engines volumes, which means that if you put your in-game volume to 100, sirens are going to be very loud and engine not so much. But if you put your in-game volume to 5, sirens will be very quiet compared to engines.

    To fix this issue, simply set your in-game volume to 50 (or any volume that gives you a good balance between engines and sirens) and then change the game's volume using Windows Volume Mixer

    Note that this issue can't be fixed until the game's fmod engine can be modded

    You need to restart the game at least 1 time to get the mod working. (install mod / start / restart and it work)
    If you the mod was disabled and you enabled it, you have to restart the game overwise the mod won't work

    Try to clear the cache of the game.
    Sometimes problems are caused by incompatibility with other mods! So, try to uninstall all other mods except this one and then, if it turns out to be working, reinstall them 1 by 1 to find which one is causing issues.

    This is due to the type of sound that I use for the sirens
    This bug can't be fixed until the game's fmod engine can be modded

    However you can reduce the issue by increasing your sound quality in game's sounds settings

    I will fix this issue when as soon as I find a fix, for now I'm still trying to find one, sorry for the issue

    See How to use -> UI apps -> Sound Selector

    |-------------------------------------------------- Credits --------------------------------------------------|

    Other cool mods:
    Thanks to GravelRoadCop for allowing me to use his sirens sounds!
    You can download his mod for GTA here:

    Huge thanks to aesthetical2 for multiple of the sirens!

    Thanks to x0xDJSx0x and ! >[Jamzs3-] for giving me some ideas for the mod and helping me to test it!
    Do not reupload any part of my mod without my permission
    Most sounds file belong to GravelRoadCop and reuploading them it not allowed either


    1. Screenshot2021-02-27150055.png
    2. Screenshot2021-02-27150102.png
    3. Screenshot2021-02-27150107.png

Recent Reviews

  1. Peekofwar
    Version: 3.0
    This is something I've wanted for a long time; the ability to switch siren tones on the fly!

    Although reportedly, my friend sometimes would not hear the siren in BeamMP for some reason, even after reselecting a siren from the list.

    Something that could be useful, is another keybind called "cycle tone" which would simply change to the next tone when pressed. Also, I'd really like a small text box somewhere that displays the name of the siren I selected, or if the item in the list was highlighted in some way.
    1. jojos38
      Author's Response
      Thanks for you review! Highlighting the current siren is a good idea I add that to the ideas list thanks
  2. Yoi_Tsuitachi
    Version: 3.0
    Used to be a bad mod imo, but now it's really good, nice job!
    1. jojos38
  3. UncleRashid
    Version: 3.0
    I love this mod a great deal. the smart siren-like interface is a major plus for me, mapping the keys was easy. only suggestion I have is to somehow incorporate a way where the air horn will cut off the siren, otherwise fantastic mod
    1. jojos38
      Author's Response
      Thanks! This is a good idea I might add a horn keybind that also cuts siren
  4. AmtrakSurflinerF59-PHI
    Version: 3.0
    verry nice bro ! But i always have problem with MS4000 with rumbler 1 and 2. And the MS4000 have hilo if you can add it that will be cool
    1. jojos38
      Author's Response
      Thanks! I try my best to have best sounds but they are not always easy to find
  5. bmwcrazy456
    Version: 2.9
    I really like this mod with one problem
    the only way for the AI cars to actually merge is through the use of the vanilla siren. As far as my tests could tell, this doesn't override that, meaning that I can't actually have the in-game cars get out of the way without the vanilla siren
    1. jojos38
      Author's Response
      This is supposed to work with the mod, maybe it was broken by an update, I will look into this someday thanks
  6. billa
    Version: 2.8
    Hi there. I really LOVE your mod, it's what this game really needed. Unfortunately, I added the 2.8 Version to my server (& client side), but still it doesn't show up in the UI menu. Any suggestions? It was working perfectly fine before BeamMP devs decided to f*** with UI. Police Radar doesn't work as well, despite it being updated after the MP update, just like your mod :(
    1. jojos38
      Author's Response
      For the mod to show on the UI it should be enabled BEFORE the game starts, so try to enable the mod and restart BeamMP so that it is enabled on start
  7. Crazyjello23
    Version: 2.8
    With the new update I know that it doesn't show up on screen anymore. And even after your new update it still doesn't show on screen. So I was just wondering if there was any way I could fix this? But its still a great mod!!
    1. jojos38
      Author's Response
      Hey, thanks for your review! Try to delete and add the app on your screen again, it should work
  8. LoneWolf127
    Version: 2.7
    With the new update that just got released, the sirens don't work. I have the UI installed, but there's nothing there... what can I do to fix this?
    1. jojos38
      Author's Response
      I update my comment, I've pushed an update that fixes the mod for the latest update, it should appears within few days, thank you for not putting a bad rating because of this!
  9. jschadle
    Version: 2.6
    Awesome! Thanks for all the effort you put into this.
    1. jojos38
  10. TarkinGaming
    Version: 2.5
    One of the many things that I love about gaming are the adrenaline-filled police races that you would see in games like Need For Speed, Grand Theft Auto and Asphalt.'s physics make them even more immersive without any loss of action. All we were missing was this mod. I've been trying to find a mod like this for about two years, and now it's here.

    Dramatic stuff aside, could you be able to add sirens from GTA 3 through GTA 5, NFS and even Asphalt at some point? Thought it would be a coll addition. Keep it up!
    1. jojos38
      Author's Response
      Hey, thank you! If I ever get the occasion to do so I will
      However those sounds are proprietary so I might not
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