Can someone help me fix my Radio welding script, as it doesn't go on the back of my player?

Hey guys, I need some help. I'm making a radio gamepass, with a radio which spawns on the back of the player when they have the gamepass Everything works well excluding the welding of the radio onto the player itself. It always goes on the right spot or the wrong spot even without changing the code once and it's broken in general.

Here's the code. Also, there is no errors in the output.

-- If you want R6 instead of R15, replace UpperTorso with Torso.

local marketplaceService = game:GetService("MarketplaceService")

local part = game.ReplicatedStorage:WaitForChild("Radio")

local gamepassID = 10743650

local hasGamepass

-- spawn radio
function onPlayerAdded(client)

    local Character = client.Character or client.CharacterAdded:Wait()

    if marketplaceService:UserOwnsGamePassAsync(client.UserId, gamepassID) or hasGamepass == true then

        local cloned = part:Clone()
        cloned.Parent = Character
        cloned.Handle.Mesh.Offset = Vector3.new(0,0,-0.5)

    else

        print("[RADIO] "..client.Name.." does not have the gamepass.")

    end

end

-- respawn radio
game:GetService('Players').PlayerAdded:Connect(function(client)

    local Character = client.Character or client.CharacterAdded:Wait()

    client.CharacterAdded:Connect(function(chr)

        Character = chr

        Character:WaitForChild("Humanoid").Died:Connect(function()

            Character.Radio.Handle.Sound:Stop()

            if marketplaceService:UserOwnsGamePassAsync(client.UserId, gamepassID) or hasGamepass == true then

                local cloned = part:Clone()
                cloned.Parent = Character
                cloned.Handle.Mesh.Offset = Vector3.new(0,0,-0.5)

            end

        end)

    end)    

end)

local sendClient = game:GetService("ReplicatedStorage").RadioEvents.sendClient
local boughtGamepassFeatures = game:GetService("ReplicatedStorage").RadioEvents.giveFeatures

-- give radio after purchase
sendClient.OnServerEvent:Connect(function(player)

    local Character = player.Character or player.CharacterAdded:Wait()

    marketplaceService.PromptGamePassPurchaseFinished:Connect(function(gamepassID)

        hasGamepass = true

        local cloned = part:Clone()
        cloned.Parent = Character
        cloned.Handle.Mesh.Offset = Vector3.new(0,0,-0.5)

        boughtGamepassFeatures:FireClient(player)

    end)

end)

game.Players.PlayerAdded:Connect(onPlayerAdded)

Thanks!