5 . Crossover circuit / Loudspeaker cables
5.1. installation of crossover
5.1.1 precable crossovers –see fig. on page 11
5.2.1 remove housing and install it on the backside of the door lining above
the rear speaker cut-out.
tighten the blank with the original screw and additional washer (see fig.).
Additionally affix the edge of the blank with hot melt adhesive or silicone.
use original fastening
screw under the arm
rest and secure with
20mm washer
affix blank on the plastic clips
fig.: installation of crossover. Backside of door-lining
under the arm rest
75153 - Audi A 4
models from 2001
- 7 -
© JEHNERT SOUND DESIGN
75153 - Audi A 4
models from 2001
- 8 -
© JEHNERT SOUND DESIGN
6. insulation of the door lining
Important
tip:
the use of 2x16mm mid-woofer /side may cause vibrations which lead to
annoying rattle noises in the car door
some helpful tips:
• use our self-adhesive insulation fleece (art.no.: 27000) or a foam material for
the backside of the door lining (see fig. above) or
• stabilize the backside of the door lining by means of a special material
(Glass Fibre Filler or stiffening material)
i
mportant: keep the cut-outs for the door-airbags and speakers open
• affix the *backside of the inner door metal with self-adhesive asphalt mats (see fig. * )
• by knocking on the car door, vibrations caused by mechanic parts (e.g. Bowden pull wire etc. )
and wiring harness may be found out. Cover these parts with foamed material, felt or
something like that
• cut off overlapping cable tie (rattle noise)
• adhere felt or foamed material under the original wiring harness
!
Important:
No insulation material behind
- loudspeaker
- door latch lever
- (fig. A): drill a hole for the
installation clip
fig.: backside of the door lining – insulation with our article no.: 27000
moisture protection foil
front side of
inner door metal
* door metal outside
= back side of the
inner door metal
attention – danger !!
No insulation behind the
side-airbags (fig. B)
�
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5.2. Installation of loudspeaker cables
5.1. carefully remove the moisture protection foil
5.2. insulation of the door lining - Important tips against vibration-noise (s.page.8)
5.3. install cables:
Lead 1 speaker cable (1,5 - 2,5 m
2
) from amplifier into the door.
5.4. reinstall the moisture protection foil
