This unit plays music from your iPhone using the external CD changer port to communicate with your factory radio. Next and previous song and charging are also done through the old 30 pin connection.  Please not that this is only compatible with apple devices that have a 30 pin connection.

Features

Music from your iPhone through the 30 pin connector. No other connection is needed.
Next and previous song control from your radio and/or steering wheel controls.
iPhone charging through the 30 pin connector.
3.5 mm aux port on the box. Will probably never be used but it’s there just in case.

Addons

PKT-VW07 – Replaces the CD changer or iPod dock in your car with a storage pocket.
Enfig RRK4 – keys required to remove the CD changer

Compatible Cars

Audi

This unit replaces the CD changer or iPod dock in the cars below.
Audi A3/S3/RS3 2006-2007 Cars with RNS-E Navigation only. If you do not have a CD changer or iPod dock in the glove box this is not the original radio that came with the car from the factory.
Audi A3/S3/RS3 2008-2013
Audi A4/S4 2004-2006 Cars with RNS-E Navigation only. If you do not have a CD changer or iPod dock in the glove box this is not the original radio that came with the car from the factory.
Audi A4/S4/RS4 2007-2008 Car must have CD changer or iPod dock in the glove box.
Audi A4/S4/RS4 2009 Convertible Car must have CD changer or iPod dock in the glove box.
Audi R8 2008-2009 All cars have the iPod dock or CD changer in the middle behind the seats.
Audi TT/TTS/TTRS 2007-2009 Cable should be located behind the left pocket in the glove box.
Audi TT/TTS/TTRS 2010-2015 Car must have CD changer or iPod dock in the glove box.  The Audi MDI box is not an iPod dock.