Ok, looks like your display is for the business nav and the controller is for the pro nav, I suspect that someone has updated the controller to the PRO as it looks better.

Flash update the cic and the controller and all the functions (buttons) will start working

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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.