GFB Deceptor Pro II Quick Start Manual

Fitting Instructions for GFB Deceptor Pro II (part # T9507)

Installing and wiring the in-car volume controller

Connect the red wire to a switched 12V power supply
inside the cabin – make sure this power supply is off
when the key is turned off, otherwise the unit will be
permanently powered.
Connect the black wire to
ground, most commonly this is
a bolt on the chassis.
Find a suitable mounting
location for the head unit. Clean
both mating surfaces
methylated spirits or similar
cleaner and secure
controller using the supplied
double-sided tape. Press hard
and hold the unit for 30
seconds. Note that it takes up to
24 hours for the tape to develop
a strong bond.
Plug the head unit into the
wiring harness connector.
Feed the primary servo cable
(250cm section, covered with
black mesh sleeve) through the
firewall into the engine bay.
Often there is an existing grommet that can be used for this purpose. In any case, it is important to ensure that the lead
is protected where it passes through the firewall to prevent wear or damage.

Basic Head Unit Operation

WARNING: Do not attempt to manually rotate the noise adjustment, always apply power and use the
controller to change the venting bias. When testing your Deceptor Pro II, DO NOT put fingers or foreign
objects through the trumpet or plumb back ports. Doing so may result in personal injury or damage to the
blow-off valve.
with
the
The head unit features a "sleep" mode that dims the dial lighting and reduces power to
the servo motor after approximately 10 seconds.
When the unit is "sleeping" (i.e. dim lighting), press the dial briefly to wake it up, and
then make position adjustments by rotating the dial. The unit will return to sleep mode
after 10 seconds.