CAUTION!
All accessories, switches, climate
controls panels, and especially air bag indicator
lights must be connected before cycling the
ignition. Also, do not remove the factory radio
with the key in the on position, or while the
vehicle is running.
AX-AU12-SWC
I N S TA L L AT I O N I N S T R U C T I O N S
AxxessInterfaces.com
© COPYRIGHT 2018 METRA ELECTRONICS CORPORATION
REV. 7/19/18 INSTAX-AU12-SWC
INTERFACE FEATURES
INTERFACE COMPONENTS
TOOLS REQUIRED
• Wire cutter • Crimp tool• Solder gun • Tape
• Connectors (example: butt-connectors, bell caps, etc.)
TABLE OF CONTENTS
Connections to be made .......................................................2-6
- For LD-BX-AU1 applications equipped with a Bose amp ........2
- For LD-BX-AU1 applications equipped without a Bose amp ..3
- For LD-BX-AU2 applications equipped with a Bose amp ........4
- For LD-BX-AU2 applications equipped without a Bose amp ..5
- 3.5mm jack steering wheel control retention .........................6
Installing the AX-AU12-SWC ..................................................... 6
Initializing the AX-AU12-SWC ................................................... 6
Troubleshooting the AX-AU12-SWC ......................................... 6
Steering wheel control settings ...........................................7-9
L.E.D. feedback .....................................................................7
Changing radio type ............................................................7
Remapping the steering wheel control buttons .............. 8
Dual assignment instructions (long button press) .......... 9
Resetting the AX-AU12-SWC ..............................................10
Audi
Data Interface with SWC
2002-2015
APPLICATIONS
• Provides accessory power
(12-volt 10-amp)
• Retains R.A.P. (retained
accessory power)
• Provides NAV outputs (parking
brake, reverse, speed sense)
• Retains audio controls on
the steering wheel
• Designed for both Bose,
and non-Bose models
• Retains balance and fade
• Micro “B” USB updatable
• AX-AU12-SWC interface
• LD-BX-AU1 harness
• LD-BX-AU2 harness
• 16-pin harness with stripped leads
• Female 3.5mm connector with stripped leads
AUDI
Applications below use
LD-BX-AU1:
A3 *
2006-2013
A4/RS 4/S4 w/ NAV
2005-2008
A4/RS 4/S4
2007-2008
A4/RS 4/S4*
2006
A4/S4
Convertible
2009
TT/TTS
2008-2015
Applications below use
LD-BX-AU2:
A3 †
2006-2007
A4/S4 ‡
2006
A4/S4
2002-2005
A6/RS 6/S6
2002-2004
allroad
2004-2005
TT
2002-2006
* Only for models with either a
Symphony Plus or a NAV radio.
† Non-navigation Concert or
Symphony radio only
‡ Non-navigation Symphony
radio only
