Horn script not working as expected?

Help, I'm trying to make a horn system for a car. I'm trying to make it server-sided so all players can hear it. It doesn't work. I have no idea why.

--Server script, parented inside a vehicleseat, which is parented inside a folder inside the truck
--It also has a GUI parented to it.
if script.Parent:IsA("VehicleSeat") then
	script.Parent.ChildAdded:Connect(function(child)
		if child:IsA("Weld") and game.Players:GetPlayerFromCharacter(child.Part1.Parent)~=nil then
			local p=game.Players:GetPlayerFromCharacter(child.Part1.Parent)
			local g=script.G:Clone()
			g.Parent=p.PlayerGui
			g:WaitForChild("SRC_REMOTE1")
			g:WaitForChild("SRC_REMOTE2")
			g.SRC_REMOTE1.Value=script.Parent.Remote.Horn
			g.SRC_REMOTE2.Value=script.Parent.Remote.Horn
			g.Horn.Disabled=false		
		end
	end)
end

--Localscript, parented inside the gui.
local mouse=game.Players.LocalPlayer:GetMouse()
script.Parent:WaitForChild("SRC_REMOTE1")
local horngo = script.Parent.SRC_REMOTE1.Value
script.Parent:WaitForChild("SRC_REMOTE2")
local hornend = script.Parent.SRC_REMOTE2.Value
mouse.KeyDown:connect(function(key)
	if key=="h" then 
		horngo:FireServer()
	end
end)
mouse.KeyUp:connect(function(key)
	if key=="h" then 
		hornend:FireServer()
	end
end)
horngo.Parent.Parent.ChildRemoved:connect(function(child)
	if child.Name=="SeatWeld" then 
		hornend:FireServer()
		script.Parent:Destroy()
	end
end)

--Serverscript parented inside the folder, which controls the remoteevent.
local remote = script.Parent.Remote.Horn

while wait() do
	remote.OnServerEvent:Connect(function()
		local truck = script.Parent.Parent
		truck:SetAttribute("Horn", true)
	end)
end