Was the auto-dip rear mirror not also an option?
If you mean the auto dimming rear interior mirror then that was standard fit on all UK spec GTi's, kerbside dip function on the nearside door mirror on reverse was a feature of one of the optional 'luxury' packs
What about Bluetooth?
The Bluetooth kit that most people retro fit was never available from the factory for the MK5, you could get the factory hard wired phone prep cradle on the dash that could support Bluetooth via Rsap if you had the bluetooth cradle fitted, but never seen it on an ed30 so maybe it was dropped?