Why sound could not be heard by other players?

-- LocalScript
local sound = game.ReplicatedStorage.Boombox.Radio.Sound
local Pitch = script.Parent.MusicFrame:findFirstChild("Pitch")
local LOP = script.Parent.MusicFrame:WaitForChild("LOP")
sound.Parent = game.Players.LocalPlayer.Character.Boombox
local input = script.Parent.MusicFrame:WaitForChild("Input")
local fr = script.Parent:WaitForChild("MusicFrame")
local Remote = game.ReplicatedStorage:WaitForChild("RemoteEvent")

fr:WaitForChild("Play").MouseButton1Click:connect(function()
    sound.Pitch = Pitch.Text
    Remote:FireServer(sound)
    print("YO")
end)

fr:WaitForChild("Stop").MouseButton1Click:connect(function()
    sound:Stop()
end)

fr:WaitForChild("LOP").MouseButton1Click:connect(function()
    if sound.Looped == false then
        sound.Looped = true
        script.Parent.MusicFrame.LOP.Text = " X "
    else
        sound.Looped = false
        script.Parent.MusicFrame.LOP.Text = ""
    end
end)
-- serverscript
game.ReplicatedStorage.RemoteEvent.OnServerEvent:Connect(function(player,sound)
    if game.ReplicatedStorage.Boombox.Radio.Sound.SoundId then
        game.ReplicatedStorage.Boombox.Radio.Sound:Play()
        print("SUP")
    end
end)