Radio script, help please?

So I am making a Officer radio on the screen but it doesn't seem to work, got the on/off down.

local Channel = game.Workspace.CityNetworkSite.Channels.Primary

game.Players.PlayerAdded:connect(function(player)
 player.Chatted:connect(function(sender, message) 
  if script.Parent.Top.OnOrOff.Text == "(OFF)" then return end
 if script.Parent.Top.OnOrOff.Text == "(ON)" then
  script.Parent.Line1.Text = Channel.Line1.Value
  script.Parent.Line2.Text = Channel.Line2.Value
  script.Parent.Line3.Text = Channel.Line3.Value
  script.Parent.Line4.Text = Channel.Line4.Value
  script.Parent.Line5.Text = Channel.Line5.Value
  script.Parent.Line6.Text = Channel.Line5.Value

 local function Update()
  Channel.Line1.Value = Channel.Line2.Value
  Channel.Line2.Value = Channel.Line3.Value
  Channel.Line3.Value = Channel.Line4.Value
  Channel.Line4.Value = Channel.Line5.Value
  Channel.Line5.Value = Channel.Line6.Value
  Channel.Line6.Value = '(PUT UNIT NUMBER HERE)'..sender..': '..message
  end
 Update()
  end
 end)
end)

game.Players.LocalPlayer.PlayerGui