Listed below is the vehicle specific wiring diagram for your car alarm, remote starter or keyless entry installation into your 2005 -2007 Audi A8 . This information outlines the wires location, color and polarity to help you identify the proper connection spots in the vehicle. Please be sure to test all of your wires with a digital multimeter before making any connections. More information on using a multimeter and testing wires please see our Technical Support Area.
PART
COLOR
LOCATION
12 VOLT
CONSTANT
RED (+)
IGNITION SWITCH HARNESS
STARTER
RED/BLACK (+)
IGNITION SWITCH HARNESS
STARTER
2
N/A
N/A
IGNITION
1
BLACK (+)
IGNITION SWITCH HARNESS
IGNITION
2
N/A
N/A
IGNITION
3
N/A
N/A
ACCESSORY/HEATER
BLOWER 1
YELLOW/BLACK (+)
IGNITION SWITCH HARNESS
ACCESSORY/HEATER
BLOWER 2
N/A
N/A
KEYSENSE
N/A
N/A
PARKING
LIGHTS ( - )
N/A
N/A
PARKING
LIGHTS ( + )
GREEN/RED (+)
BEHIND LIGHT SWITCH
POWER LOCK
BROWN/YELLOW (-) TYPE
AT PUMP MOTOR IN LEFT SIDE OF TRUNK
POWER UNLOCK
BROWN/RED (-) TYPE
AT PUMP MOTOR IN LEFT SIDE OF TRUNK
DOOR TRIGGER
SEE NOTE *
IN PLUG TO LEFT OF INSTRUMENT PANEL
DOMELIGHT
SUPERVISION
N/A
N/A
TRUNK RELEASE
N/A
N/A
SLIDING
POWER DOOR
N/A
N/A
HORN
N/A
N/A
TACH
BLACK
AT IGNITION COIL
WAIT TO
START LIGHT
N/A
N/A
BRAKE
RED/BLACK (+)
AT SWITCH ABOVE BRAKE PEDAL
FACTORY
ALARM DISARM
N/A
N/A
ANTI-THEFT
TRANSPONDER ANTI-THEFT
TRANSPONDER @ IGNITION SWITCH TUMBLER
EXTRA
INFORMATION
NOTE * THE LEFT FRONT DOOR IS BROWN/BLACK (-). THE RIGHT FRONT DOOR IS BLACK/YELLOW (-). THE LEFT REAR DOOR IS BROWN/WHITE (-). THE RIGHT REAR DOOR IS BROWN/BLACK (-). USE ALL 4 WIRES AND DIODE ISOLATE EACH.
