now installed CarPlay on my pre FL , easy to install.

1) connect CarPlay box to AUDI AMI socket , plug in microphone into CarPlay box

2) connect to power

3) plug in iPhone

4) cycle through the apps using the controller supplied or use Siri (the supplied controller can attach to the steering wheel with the holder provided or it can be removed from the holder and placed some where else.

all works fine - grt that I have up to date maps now as my maps were 2011 , all music is stored on my phone and and on jukebox so I C an listen to music when CarPlay is not in use , just need to download a radio app now .