If you want to replace your factory radio with an aftermarket radio, please retain the original steering wheel remote control functions.

However, it is possible that depending on the vehicle equipment as well as the functionality and software of the retrofit device, individual operating functions may be omitted or replaced by others.

Compare the illustrated plugs of the adapter with those in your vehicle and ensure that they fit visually and technically.

Please also check if one of the specified original factory radios was installed in your vehicle.

Before the final assembly, please check the functions of your vehicle, vehicle settings, and the steering wheel remote control for their functionality.

Note

• CAN Bus
• Connection: 40 Pin Quadlock VAG Connector
• Connection: 2 Channel / 4 Channel OEM Sound System > Speaker Output Front/Rear*
• Vehicles with Blaupunkt / Matsushita / Grundig / Concert II / Symphony II / Chorus II 2-DIN OEM device
• Vehicles with RNS-E 16:9 OEM Navigation
• Vehicles without Bosch BNS 5.0 Monochrome OEM Navigation**
• Blue: +12V Amp Amplifier Remote

Suitable for the following vehicles

• Audi A3 (8P) 05/2003 - 04/2005
• Audi A3 ((P Facelift 1/2) 10/2004 - 04/2013
• Audi A4 (8E/B6/B7) 11/2000 - 02/2009
• Audi A6 (C5/B4) 05/2001 - 03/2006***
• Audi R8 (42) 04/2007 - 05/2015
• Audi TT (8J) 04/2006 - 03/2014

The following signals are provided.

• Reimport vehicles or vehicles with differing software may be incompatible in functions.
• red: +12V ignition terminal 15
• orange: +12V lighting terminal 58
• purple/white: +12V reverse signal
• green: mass GND handbrake signal
• Load capacity total outputs: 100 mA max.
• Current demand greater than 100 mA
• 1 Relay Coil Resistance 75 Ohm min.
• 2 Relay coil resistance 150 Ohm min.
• steering wheel remote control
• OEM Sound System 2 Channel / 4 Channel
• *Level adjustable
• **Vehicles with BNS 5.0 OEM Navigation LFB Audi/Seat/Skoda/VW various vehicles 40Pin Quadlock: 42a-1324-001
• **Active system adapter Audi/VW Quadlock MQS insert: 13-1424-25
• ***Vehicles only with RNS-E OEM Navigation

Connection cable for the following radio manufacturers

• LFB Cable 42s/acv > Alpine Jack: 42ctalpinelead
• LFB Cable 42s/acv > Parrot 4 Pin: 42ctasteroidlead
• LFB Cable 42s/acv > Bosch-Blaupunkt >2010 Mini ISO: 42ctblaupunktlead
• LFB Cable 42s/acv > Blaupunkt/China HU/Kenwood 3 Cable: 42ctchinahulead
• LFB Cable 42s/acv > Clarion Jack: 42ctclarionlead
• LFB Cable 42s/acv > Garmin Vieo" RV52 Stereo Dock 3 Cable: 42ctgarminlead
• LFB Cable 42s/acv > JVC 1 Cable/Jack: 42ctjvclead
• LFB Cable 42s/acv > Kenwood 1 Cable: 42ctkenwoodlead
• LFB Cable 42s/acv > Multilead various devices: 42ctmultilead
• LFB Cable 42s/acv > Multilead various devices/Pioneer 2022>: 42ctmultilead3
• LFB Cable 42s/acv > Multilead various devices/Pioneer 2022>: 42ctmultilead5
• LFB Cable 42s/acv > Panasonic 1 Cable: 42ctpanasoniclead
• LFB Cable 42s/acv > Blaupunkt/Kenwood/Pioneer Jack: 42ctpioneerlead
• LFB Cable 42s/acv > Pioneer AVH/DMH/SPH 2022> Loose jack: 42ctpioneerlead2
• LFB Cable 42s/acv > Devices with LFB learning function: 42ctsmartlead
• LFB Cable 42s/acv > Blaupunkt/Kenwood/Sony Jack: 42ctsonylead
• LFB Cable 42s/acv > XZent/Zenec 1 Cable: 42ctzeneclead

General Installation Instructions

• Review
• 1: Review of all operating functions and vehicle adjustment functions of the OEM device
• 2: Carry out the disassembly of the OEM device without voltage
• 3: Check all interface connections for correctness and continuity without voltage.
• Connection and connection sequence
• 1: Make settings and hardware configuration of the interface without voltage.
• 2: Check configuration of the radio connection cable
• 3: Connect the radio connection cable according to the operating instructions of the retrofit device.
• 4: Connect all other connections according to the operating instructions of the retrofit device.
• 5: Connection of the entire installation to the vehicle with live connection last
• 6: Software configuration of the interface according to the instructions in the article text and in the BDA
• 7: Configuration of the retrofit device according to the operating instructions of the retrofit device steering wheel remote control/camera/phone hands-free system/antenna phantom power supply and more
• 8: Function test steering wheel remote control and vehicle
• Changes to the hardware configuration of the interface and the radio connection cable
• 1: Carry out changes without tension
• 2: Connection after change see above 5 to 8
• In case of malfunction of the interface or the vehicle
• 1: Reversion to the OEM device
• 2: Operate OEM device
• 3: Establish CAN Bus idle
• 4: Review of the hardware configuration of the interface
• 5: Connection to CAN Bus idle see above 5 to 8
• The connections, connection changes, alternative connections, connections of loose cables, or connection extensions of loose cables specified in the instructions or the operating manual are intended solely for orientation and information for trained professionals.
• Further connections, changes to the cable configuration of the wiring harness, or use of alternative connections or connection extensions.
• 1: Connections and modifications are to be carried out exclusively by trained professionals.
• 2: Connections and modifications must be checked for any manufacturer approvals or any manufacturer warranty conditions that may be affected by the modifications before connection.
• 3: Connections and modifications must be checked for functionality and correctness before connection by measuring and by matching against the vehicle's wiring diagram.
• 4: Connections and modifications are made at your own risk without guarantee of functionality.
• 5: Connections and modifications are made at your own risk without any guarantee against damage to the vehicle, the retrofitting device, or the interface.
• 6: Modifications to the pre-assembled wiring harness may result in the expiration of the product warranty.