It doesn't have one.
the power window module is under the dash on the drivers side below the steering wheel and it is the large on in the middle but the back side of the panel you have to remove says what each relay is for
Rear window glass
An Audi A4 1999 hasn't a relay switch. There are control modules located at each door instead. If windows or doors need repair examine fuses first.Ê
Its not Fused is protected by a circuit breakers
The 2001 Audi S4 is 5 ft. 8.2 in. (68.2 in.)10 -way power driver seat wide.
The 2001 Audi A4 is 5 ft. 8.2 in. (68.2 in.)12V front power outlet(s) wide.
The 2001 Audi A6 is 5 ft. 11.3 in. (71.3 in.)12 -way power driver seat wide.
1996-2001 Audi A4 1998-2005 Audi A6 1997-2003 Audi A8 The flasher is located on the dash above the radio, it is te same unit as the hazard switch.
From reading the audiforums it seems the antenna booster (or diversity box as Audi calls it) is under the trim piece at the top of the rear window. You have to *PULL* the trim piece off to find it.
The 2001 Audi A8 is 6 ft. 7 in. (79 in.)12V front and 12V rear power outlet(s) wide.
The 2001 Audi S8 is 6 ft. 7 in. (79 in.)12V front and 12V rear power outlet(s) wide.
ECU under Rear Seat.