Como pego el parlante de un jugador en la espalda

[Leyenda!_ed]

Hola Necesito Ayuda es mi primer post :,v 

Como hago que al poner el parlante de musica se pegue ala espalda del jugador 

soy novato en esto aca el codigo del script

Spoiler

 

local isSpeaker = false

function print ( player, message, r, g, b )
    outputChatBox ( message, player, r, g, b )
end

speakerBox = { }
addCommandHandler ( "sound", function ( thePlayer  )
    if ( isElement ( speakerBox [ thePlayer] ) ) then isSpeaker = true end
    triggerClientEvent ( thePlayer, "onPlayerViewSpeakerManagment", thePlayer, isSpeaker )
end )

addEvent ( "onPlayerPlaceSpeakerBox", true )
addEventHandler ( "onPlayerPlaceSpeakerBox", root, function ( url, isCar ) 
    if ( url ) then
        if ( isElement ( speakerBox [ source ] ) ) then
            local x, y, z = getElementPosition ( speakerBox [ source ] ) 
            print ( source, "Parlante Quitado: "..math.floor ( x )..", "..math.floor ( y )..", "..math.floor ( z ), 255, 0, 0 )
            destroyElement ( speakerBox [ source ] )
            removeEventHandler ( "onPlayerQuit", source, destroySpeakersOnPlayerQuit )
        end
        local x, y, z = getElementPosition ( source )
        local rx, ry, rz = getElementRotation ( source )
        speakerBox [ source ] = createObject ( 2229, x-0.5, y+0.5, z - 1, 0, 0, rx )
        print ( source, "Parlante Creado "..math.floor ( x )..", "..math.floor ( y )..", "..math.floor ( z ), 0, 255, 0 )
        addEventHandler ( "onPlayerQuit", source, destroySpeakersOnPlayerQuit )
        triggerClientEvent ( root, "onPlayerStartSpeakerBoxSound", root, source, url, isCar )
        if ( isCar ) then
            local car = getPedOccupiedVehicle ( source )
            attachElements ( speakerBox [ source ], car, -0.7, -1.5, -0.5, 0, 90, 0 )
        end
    end
end )

addEvent ( "onPlayerDestroySpeakerBox", true )
addEventHandler ( "onPlayerDestroySpeakerBox", root, function ( )
    if ( isElement ( speakerBox [ source ] ) ) then
        destroyElement ( speakerBox [ source ] )
        triggerClientEvent ( root, "onPlayerDestroySpeakerBox", root, source )
        removeEventHandler ( "onPlayerQuit", source, destroySpeakersOnPlayerQuit )
        print ( source, "Parlante Quitado.", 255, 0, 0 )
    else
        print ( source, "El Parlante Ya A Sido Quitado.", 255, 255, 0 )
    end
end )

addEvent ( "onPlayerChangeSpeakerBoxVolume", true ) 
addEventHandler ( "onPlayerChangeSpeakerBoxVolume", root, function ( to )
    triggerClientEvent ( root, "onPlayerChangeSpeakerBoxVolumeC", root, source, to )
end )

function destroySpeakersOnPlayerQuit ( )
    if ( isElement ( speakerBox [ source ] ) ) then
        destroyElement ( speakerBox [ source ] )
        triggerClientEvent ( root, "onPlayerDestroySpeakerBox", root, source )
    end
end