Hi All

Ive bought a 2003 a4 with the bose system. Its all fine, but im looking to replace the HU for a few reasons:

1. Bluetooth integration
2. Mp3 compatible
3. The current HU is slighty damaged (looks poor)

While I enjoy music, im not that demanding and was looking at this:


Can anyone advise the other items I require?

I understand I will need a facia kit and a converter to allow the controls to work through the steering wheel... what else do I need?

Any help appreciated!