[San1]

Код:

if (strcmp("/siren", cmdtext, true, 10) == 0)
	{
	        new objectid = CreateObject(19419, 0, 0, 0, 0, 0, 0);
		AttachObjectToVehicle(objectid, GetPlayerVehicleID(playerid), 0.009999, -0.019999, 0.944999, 0.000000, 0.000000, 0.000000); //Object Model: 19419 |
		SendClientMessage(playerid, COLOR_RED, "You've Added a siren to your vehicle");
		return 1;
	}

it did not take long for me to make this and hope u enjoy it and use /siren to add an siren to remove just restart server Note-Use Weather id 10 for the blinking
good for roleplay and cops and robbers server