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REV. 7/19/2018 INSTAX-AU12-SWC

CONNECTIONS TO BE MADE 

(LD-BX-AU1 APPLICATIONS)

Attention!

 This interface will work with models that are equipped with or without a Bose ampli-

fier. Please follow the instructions carefully for your model vehicle. Failure to do so will result in 
improper sound. If you are unsure if your vehicle is equipped with a Bose amplifier or not, please 
contact your local dealership.

For models equipped 

without

 a Bose sound system:

  From the 16-pin harness with stripped leads to the aftermarket radio:

  •  Connect the (2) 

Red

 wires to the accessory wire.

  •  Connect the 

Orange

 wire to the illumination wire. If the aftermarket radio does not have an 

illumination wire, tape off and disregard the 

Orange

 wire.

  •  Connect the 

Blue/White

 wire to the amp turn on wire. This wire must be connected to hear 

sound from the factory amplifier.

 

Note:

 

There is a 

Blue

 wire on the LD-BX-AU1 harness to connect as well.

The following (2) wires are for multimedia/navigation radios that require these wires. If not 

required, tape them off and disregard them.

  •  Connect the 

Green/Purple

 wire to the reverse wire, if applicable.

  •  Connect the 

Light Green

 wire to the parking brake wire, if applicable.

  •  Tape off and disregard the following (9) wires, they will not be used in this application: 

Blue/Pink

Green

Green/Black

Purple

Purple/Black

White

White/Black

Gray

 and 

Gray/

Black

.

  From the LD-BX-AU1 harness to the aftermarket radio:

  •  Connect both the 

Black

 and 

Black/White

 wires to the ground wire.

  •  Connect the 

Yellow

 wire to the battery wire.

  •  Connect the 

Blue

 wire to the amp turn on wire. This wire must be connected to hear sound 

from the factory amplifier.

The following (1) wire is for a multimedia/navigation radio that requires this wire. If not 

required, tape it off and disregard it.

  •  Connect the 

Blue/Pink

 wire to the speed sense wire (V.S.S.), if applicable.

  •  Connect the 

Green

 RCA jack to the left rear RCA output.

  •  Connect the 

Purple

 RCA jack to the right rear RCA output.

  •  Disregard the 

White

 RCA jack, it will not be used in this application.

  •  Disregard the 

Gray

 RCA jack, it will not be used in this application.

  •  Connect the 

Gray

 wire to the right front positive speaker output.

  •  Connect the 

Gray/Black

 wire to the right front negative speaker output.

  •  Connect the 

White

 wire to the left front positive speaker output.

  •  Connect the 

White/Black

 wire to the left front negative speaker output.

  •  Tape off and disregard the following (4) wires, they will not be used in this application: 

Green

Green/Black

Purple

 and 

Purple/Black

.

 

Continue to 3.5mm jack steering wheel control retention

Summary of Contents for AX-AU12-SWC

Page 1: ...AU12 SWC 6 Steeringwheelcontrolsettings 7 9 L E D feedback 7 Changingradiotype 7 Remappingthesteeringwheelcontrolbuttons 8 Dualassignmentinstructions longbuttonpress 9 ResettingtheAX AU12 SWC 10 Audi...

Page 2: ...ire to the parking brake wire Tape off and disregard the following 9 wires they will not be used in this application Blue Pink Green Green Black Purple Purple Black White White Black Gray and Gray Bla...

Page 3: ...licable Tape off and disregard the following 9 wires they will not be used in this application Blue Pink Green Green Black Purple Purple Black White White Black Gray and Gray Black From the LD BX AU1...

Page 4: ...Purple wire to the reverse wire Connect the Light Green wire to the parking brake wire Tape off and disregard the following 8 wires they will not be used in this application Green Green Black Purple P...

Page 5: ...ultimedia navigation radios that require these wires If not required tape them off and disregard them Connect the Blue Pink wire to the VSS speed sense wire Connect the Green Purple wire to the revers...

Page 6: ...more information For all other radios Connect the 3 5mm jack from the LD BX AU1 or LD BX AU2 harness into the jack on the aftermarket radio designated for an external steering wheel control interface...

Page 7: ...een initialized and programmed L E D feedback The 18 Red L E D flashes represent what brand radio the AX AU12 SWC believes it is connected to Each flash represents a different radio manufacturer For e...

Page 8: ...n the Button Assignment Legend to reference the order in which the steering wheel control buttons need to be programmed Note If the next function on the list is not on the steering wheel press the Vol...

Page 9: ...being pressed and then go back to a solid L E D once released Go to the next step once the Volume Up button has been pressed the desired number of times Caution If more than 10 seconds elapses between...

Page 10: ...rapid flash means the interface is starting its re programming process 2 The L E D inside the interface will turn off for a couple seconds then flash fast then flash slowly up to 18 times indicating...

Page 11: ...11 REV 7 19 2018 INSTAX AU12 SWC...

Page 12: ...ed technicians IMPORTANT If you are having difficulties with the installation of this product please call our Tech Support line at 1 800 253 TECH Before doing so look over the instructions a second ti...

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