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Vehicle Wiring Details for your
2003-2004 Audi A6 Wiring Diagram
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Listed below is the vehicle specific wiring diagram for your car alarm, remote starter or keyless entry installation into your 2003-2004 Audi A6 . 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 (+), See NOTE #1  @ IGNITION SWITCH HARNESS
 STARTER 2  BLUE (+), See NOTE #1  @ IGNITION SWITCH HARNESS
 IGNITION 1  BLACK (+)  @ IGNITION SWITCH HARNESS
 IGNITION 2  N/A  
 IGNITION 3  N/A  
 ACCESSORY/HEATER BLOWER 1  YELLOW/BLACK (+)  @ IGNITION SWITCH HARNESS
 ACCESSORY/HEATER BLOWER 2  N/A  
 KEYSENSE  N/A  
 PARKING LIGHTS ( - )  If Equipped with DRL, GREEN/GRAY, See NOTE #2  @ HEADLIGHT SWITCH See DIAGRAM
 PARKING LIGHTS ( + )  NOT equipped with DRL, See NOTE #2  @ HEADLIGHT SWITCH See DIAGRAM
 POWER LOCK  GREEN/BLUE (TYPE B), See NOTE #4  @ CENTRAL LOCKING CONTROL MODULE, C3 PIN 12, See NOTE #3
 POWER UNLOCK  BROWN/YELLOW (TYPE B) (Requires Double Pulse), See NOTE #4  @ CENTRAL LOCKING CONTROL MODULE, C3 PIN 6, See NOTE #3
 DOOR TRIGGER  See NOTE #5  @ CENTRAL LOCKING CONTROL MODULE C5, See NOTE #3
 DOMELIGHT SUPERVISION  BROWN/WHITE (-)  @ CENTRAL LOCKING CONTROL MODULE C1 PIN2, See NOTE #3
 TRUNK RELEASE  PURPLE/GREEN (+)  @ CENTRAL LOCKING CONTROL MODULE, C4 PIN 5, See NOTE #3
 SLIDING POWER DOOR  N/A  
 HORN  BLACK/YELLOW (+)  @ HORN RELAY, UNDER DRIVERS SIDE of DASH
 TACH  Any wire NOT RED/GREEN, BROWN/YELLOW, BROWN or BROWN/WHITE (AC)  @ Any IGNITION COIL
 WAIT TO START LIGHT  N/A  
 BRAKE  RED/BLACK (+) or RED/WHITE (+)  @ SWITCH ABOVE BRAKE PEDAL
 FACTORY ALARM DISARM   DISARMS WITH UNLOCK, Single Pulse on UNLOCK wire, Disarms  
 ANTI-THEFT  AUDI'S TRANSPONDER ANTI-THEFT SYSTEM, See NOTE #6  @ IGNITION SWITCH TUMBLER
 EXTRA INFORMATION
 NOTE #1: When Installing a REMOTE STARTER, you MUST use BOTH Starter #1 and Starter #2 wires. Both wires must be connected to the STARTER/CRANKING Output wire from the Remote Starter or the vehcile will NOT Remote Start when the Engine is cold. NOTE #2: On vehicles with DLR, use the GREEN/GRAY (+) at the HEADLIGHT SWITCH, use a RELAY to isolate this wire use the DIAGRAM 5-WIRE ISOLATION on the (-) PARKING LIGHTS INFO. On vehicles without the DRL, use the GREEN/BLACK (+) and GREEN/RED (+) wires at the HEADLIGHT SWITCH and use the DIAGRAM DAUL PARKING LIGHT NOTE #3: the CENTRAL LOCKING CONTROL MODULE is under the carpet in front of the DRIVERS SEAT NOTE #4: DO NOT program in the IGNITION CONTROLLED DOOR LOCKS from the unit, this may cause problems with the Interior lights in the vehicle. NOTE #5: DRIVERS DOOR TRIGGER IS GREENYELLOW (-) IN PIN 1, FRONT PASSANGER DOOR IS RED/GRAY (-) IN PIN 10, LEFT REAR DOOR IS BLACK/RED (-) PIN 12 AND RIGHT REAR DOOR IS BLACK/PURPLE (-) IN PIN 14 WHEN CONNECTING TO AN ALARM SYSTEM USE ALL 4 WIRES AND DIODE ISOLATE, See DIAGRAM NOTE #6: AUDI'S TRANSPONDER ANTI-THEFT SYSTEM, Requires Bypass Module, Part # 791 Bypass and an extra ignition key for REMOTE STARTING Operation. To order go to the SECURITY BYPASS MODULE Page on the website.
 
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