Audi  A4 1998-1999
 PART   COLOR  LOCATION
 12 VOLT CONSTANT   RED (+)   @ IGNITION SWITCH HARNESS
 STARTER  RED/BLACK (+)  @ IGNITION SWITCH HARNESS
 STARTER 2  BLUE (+)  @ 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 ( - )  N/A  
 PARKING LIGHTS ( + )  GRAY/BLACK (+) and GRAY/RED (+) Use both, See NOTE #1  @ HEADLIGHT SWITCH See DIAGRAM
 POWER LOCK  BROWN/GRAY or RED/BROWN (TYPE B)  IN DRIVERS KICK PANEL or SECURITY MODULE See NOTE #2
 POWER UNLOCK  GRAY/WHITE (TYPE B) (Requires Double Pulse)  IN DRIVERS KICK PANEL or SECURITY MODULE See NOTE #2
 DOOR TRIGGER  BROWN/YELLOW (-) and BROWN/WHITE (-) See NOTE #3  IN BOTH KICK PANELS
 DOMELIGHT SUPERVISION  BROWN/YELLOW (-) (Requires #775 relay for DOMELIGHT SUPERVISION)  IN DRIVERS KICK PANEL
 TRUNK RELEASE  YELLOW/RED (+)  @ TRUCK RELEASE SWITCH
 SLIDING POWER DOOR  N/A  
 HORN  BLACK/YELLOW (+)  @ HORN RELAY
 TACH  GREEN/BLUE  See NOTE *4
 WAIT TO START LIGHT  N/A  
 BRAKE  RED/BLACK (+)  @ SWITCH ABOVE BRAKE PEDAL
 FACTORY ALARM DISARM   GRAY/WHITE (-) See NOTE #5  @ SECURITY MODULE See NOTE #2
 ANTI-THEFT  N/A  
 EXTRA INFORMATION
 NOTE #1: this vehicle uses 2 Parking Light wires you will need (2) extra Relays to connect, See DIAGRAM NOTE #2: the FACTORY SECURITY MODULE is located at the BOTTOM of PASSENGER side of the TRUNK NOTE #3: the BROWN/YELLOW (-) in the DRIVERS KICK PANEL is for the DRIVERS DOOR, the BROWN/WHITE (-) in the PASSENGER KICK PANEL is for all other doors. When connecting to an ALARM SYSTEM use both wires and DIODE ISOLATE See DIAGRAM NOTE #4: the TACH wire is at the INSTRUMENT CLUSTER or can be found at the ECM on the DRIVERS SIDE FIREWALL. NOTE #5: when testing this wire, you must test while turning the key in the TRUNK KEY CYLINDER.