Adding siren sounds to lightbars?

So recently the game got the siren update and I was curious if it would be possible to update something like the default emergency pack's lightbars without completely recoding them. (By updating them I mean allowing them to use the new sounds). If not I understand and I'll just put up with the beacon light on the Moonhawk...

 

What do you mean by this post? Like do you mean by changing the moonhawk siren sound?

 

Not quite. I mean the light bars in the default emergency pack don't have support for the new siren sound system (They don't make any noise when you activate them unlike the normal BeamNG light bars.) So what I meant to say was I wondering how you would program them to use the new siren system.