Don't know about the NA disc mate, are you sure its a HIGH disc? POISon work on all HIGH and cd based systems I've tried it on.

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Sept 03, M3, Silver Grey. Retro-fits: Modded Mk4 DVD Drive, OEM Bluetooth, VR Control, Rainbow Speaker Upgrade, Sony SOT Amp, HK Sub, CCFL, Intravee II, NightMode.