Just ordered the Pioneer from Bestbuy's website.. I am totally oblivious as to what DIY routes I can take to swap this out with my stock Concert 2. I was hoping to get some input from the community. My car: 2009 Audi A3 2.0T Premium Quattro - BT included - Concert 2 My expectations and stuff through research: - steering wheel controls integration with Pioneer dash - no song info on dashboard - phone integration will be with pioneer instead of Audi BT - use SD card for song storage Outstanding questions 1) Do I need to order any extra hardware (connectors, installation kits, etc) to install this? If I do, what do I need? 2) Will this affect any of my existing functionality in my car? Thanks in advance for your help!