This adapter is not compatible with factory navigation, satellite radio, CD changer, and/or DSP radios.
This adapter connects to the cd changer port- any device, including cd changer, connected to this port will have to be disconnected.    
This adapter plugs into the factory cd changer cable usually located in the trunk- some vehicles might not be factory pre-wired.


Vehicle Compatibility:

BMW:
1996-2005 All 3 series including the M3
1999-2007 Z3/Z4
1998-2003 All 5 series including the M5
1999-2007 X3/X5

Mini:
2002-2006 Cooper

The USA Spec iPod Interface Cable connects, controls, charges, and plays an iPod through the factory stereo system of most Domestic, Japanese, and European vehicle brands.
Get pure Digital Sound of your iPod into your factory radio.
Also adds optional auxiliary input to connect any standard portable stereo device plus iPod connection.

•  IPOD interface to connect, control, charge and play an IPOD through a factory radio
•  All plug and play harnesses included for most applications and for easy installation
•  Adds additional single  stereo Aux input
•  Song up/down Playlist/disc select, shuffle and random play features all control iPod
•  Auto memory feature – Auto locates last song listened to on each play list
•  Auto Skip 10+ songs in each play list with factory CD Changer FF button
•  Auto skip to end of play list with factory CD Changer FF button
•  Auto Maintain current play list when migrating from portable to in car use
•  Auto Charge feature charges IPOD battery and auto stops after 1 hour of non use.
•  In some vehicles if Vehicle has existing external CD Changer it must be disconnected.
•  Auto Playlist Select – If no play list is created, Auto Selects first 5 play list on iPod

Two modes to choose from (selected by dip switch on adapter):
Direct Mode - Gives user complete control of their iPod while it is connected to the factory radio. iPod is not locked out while connected to the radio and user is able to manually access their complete iPod content. Radio still can adjust song up/down random or shuffle play but user can manually control their iPod and select any playlist, genre or Artist of their choice.
New Hybrid Mode! - Combines best features of Direct Mode and Playlist Mode. Create and access your favorite mobile playlist or directly access all your iPod content manually on your iPod. iPod displays song title information and iPod is not locked, so the iPod can be operated manually at all times (locked out on new square Nano, iPhone, and Touch).