Sound won't play once child is added?

I was revising the old Rocket Boots from the original SFOTH and was making it so that the sound it plays when used can be heard by everyone near the player vs only the playing using the boots. I made a script that plays a sound once the BodyVelocity is added to the users torso, although it doesn't seem to do anything nor give me any errors, here's the script:

function PlayIfAdded(BV)
    if BV.ClassName == "BodyVelocity" then
        local Sound = Instance.new("Sound",script.Parent.Parent.Torso)
        Sound.SoundId = "rbxasset://sounds\\Rocket whoosh 01.wav"
        Sound.Volume = .75
        Sound.Name = "RocketSound"
        Sound:Play() 
    end
end

function StopIfRemoved(BV2)
    if BV2.ClassName == "BodyVelocity" then
        if script.Parent.Parent.Torso:FindFirstChild("RocketSound") ~= nil then
            script.Parent.Parent.Torso.RocketSound:Destroy()
        end
    end
end

script.Parent.Parent.Torso.ChildAdded:Connect(PlayIfAdded)
script.Parent.Parent.Torso.ChildRemoved:Connect(StopIfRemoved)

Edit: The main problem now is that it won't add the sound to the player's torso.

2nd Edit to explain a bit more:

The rocket boots don't have a handle, and I turned RequiresHandle off. This script I'm showing here is normally disabled, but it gets enabled once you equip the tool, and disabled once you unequip it. The main flying script is local, and this script (as well as the enable/disable script) isn't. Although every other part of the boots work fine, it just won't add the sound to the torso.