Retrofit iPod/iPhone to Chorus 3.

Hi all.

Some elements of this topic have been covered a few times before on here, but I can't seem to find the specific info I'm after - I hope someone can help

A friend has a 2009 A3 Sportsback (SE) with what I believe is the Chorus 3 (double-DIN) music unit. He noticed that the instruction booklet also covered - on some models - the use of an iPod dock which is located in the glovebox. His car doesn't have this, but he'd like to retro-fit one.


My Qs, please:

1) Are the Chorus 3 units identical in both setups, the iPod and non-iPod versions? Ie - if he were to obtain just the cable, could it be fitted to his existing unit and work as it should?

2) The optional Audi 'dock' was a 30-pin jobbie for the - then - popular iPods, but if this was the only kind of original cable connector that could be easily fitted, would a 30-pin to 'Lightning' (8-pin) adaptor then allow him to use his iPhone with this? (I understand the adaptor would have to be a genuine Apple item as copies are unreliable in transferring audio). Would such a '30 to Light' adaptor allow any amount of control from the radio or steering wheel controls as, presumably, the docking/iPod terminal would?

3) As an alternative, is this too good to be true?! https://usb-nachruesten.de/en/bluet...achtraeglich-einbauen?number=usbn_bt.20&c=144 It says it maintains steering wheel control over the track selection, etc.

Many thanks for any input.