I want to Install a new Head unit in my A3 since my model doesn't come with Bluetooth/AUX/USB.

I'm aware of the following:
may need a VAG-COM code for it?
Bose adaptor (even for non Bose speaker models)
fascia adapter


Has anyone else done this and can link me their threads on how they did it? If not can you help me carry out this build.


Ideally I'd like to keep the steering wheel controls. Feel free to recommend me the HU and what other harnesses/adapters I need for this build.


Thank you in advance,
H