Converting to AssetID not working

I’m trying to convert a sound to an asset id, however, it does not work.

		AssetString = "rbxassetid://"
		ID = Sound.SoundId
		SoundService:PlayLocalSound(AssetString..ID)

The last line should just be

SoundService:PlayLocalSound(ID)

I tried using a part as a SoundSource, but that doesn’t work.
How would I get the sound to play?
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–[[
this doesnt work with the new sound service :frowning:
local SoundService = game:GetService(“SoundService”)
local HTTP = game:GetService(“HttpService”)
local AssetString = “rbxassetid://”
local ID = 377760066
local AssetID = AssetString…ID
local Sound = SoundService:FindFirstChild(“Sound”)
if Sound then
Sound:Remove()
end
Sound = Instance.new(“Sound”)
Sound.SoundId = AssetID
Sound.Parent = SoundService
Sound:PlayLocal()
–]]