3.2 Assembly overview of the electrical connection
1 - Electrical connection
— CAN bus
2 - Retrofit wiring har-
ness — route for left-
hand drive vehicles
3 - Retrofit wiring har-
ness — route for
right-hand drive vehi-
cles
4 - Electrical connection
— earth
q 9 Nm
5 - Electrical connection
— power supply
6 - Electrical connection
— right sound activa-
tor
7 - Electrical connection
— left sound activa-
tor
8 - Control unit, sound
AGA
9 - Nut
q 9 Nm
3.3 Mounting the control unit — connecting
to the on-board supply
– Centre the control unit holder on the insulation matting and
mark the drill points -1-.
– Punch mark the drill points.
– Drill the holes using a 3.0 mm drill bit (angle drill, cordless
screwdriver). Make sure that the clearance to wires and the
vehicle body is sufficient.
Caution
Do not drill into any wires!
For reasons associated with corrosion protection, use a
vacuum to continually collect the drilling chips while drill-
ing. Corrosion damage due to drilling chips is not covered
by the vehicle's warranty.
Installation instructions - Audi A4/A5 (B8 series) 2008 ▶
Edition 11/2012
4
3 Sequence of operations
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