BMW SA640, Installation Instruction, Page: 20 / 33

3.5.2 To connect additional wiring harnesses
A (Speaker wiring harness IV)
Cars without a BMW Professional DSP hi-fi system and without prepared speaker cabling only
Remove the door plug (30) at the front left or at the front right on RHD versions, and disconnect the plug connector.
Remove the catch (31) on the plug casing (32) and press out the 8-pin plug casing X18196 or X18198 (33).
LHD cars
Press branch
IV/4
, cable colour black/white, into slot No. 6 of plug casing X18196 (33).
Press branch
IV/5
, cable colour black/brown, into slot No. 2 of plug casing X18196 (33).
RHD cars
Press branch
IV/4
, cable colour black/white, into slot No. 6 of plug casing X18198 (33).
Press branch
IV/5
, cable colour black/brown, into slot No. 2 of plug casing X18198 (33).
Lay the speaker wiring harness
IV
along the vehicle wiring harness from the A pillar on the left-hand side or, on
RHD cars, from the A pillar on the right-hand side, to the 12-pin plug X322 in the boot on the left-hand side.
Lay branches
IV/1 - IV/3
to the 12-pin plug connector X322 (34).
Press branch
IV/1
, cable colour black/white, into slot No. 9 of the plug connector X322 (34).
Press branch
IV/2
, cable colour black/brown, into slot No. 10 of the plug connector X322 (34).
Press branch
IV/3
, cable colour white/brown, into slot No. 8 of the plug connector X322 (34).
Lay branch
IV/6,
cable colour white/brown, to the installation site of the radio if branch
IV/3,
cable colour
white/brown, must be connected to plug connector X322. If branch
IV/3
is not required, branch
IV/6
must be
insulated and tied back on the wiring harness.
B (Microphone wiring harness III)
All cars
Secure the microphone wiring harness
III
so that no deterioration in function occurs on cars with an ITS
head airbag.
Connect branch
III/1
from the microphone wiring harness to branch
I/1
on the connection cable.
Lay the microphone wiring harness III through the passage grommet (37) into the interior of the car.
See 3.6 To install and connect the microphone for details of how to connect branch
III/2
.
C (Power supply wiring harness II)
Cars with SA plug X400
On cars with a white 12-pin telephone SA plug X400, branch
I/3,
12-pin socket casing from connection cable
I
,
is to be connected to it.
The power supply wiring harness
II
does not have to be installed.
Cars without SA plug X400
Cut the 12-pin plug connector X322 (34) and connect it to branches
II/1
and
II/2
.
Connect the plug connectors to the holder. Connect branch
II/3
to branch
I/3
, insert it into the plug connector
holder and secure it to the recess on the brace.
Connect branch
II/6,
cable colour violet/white, to the black plug connector X325 (35) in slot No. 2. Remove the
fuse holder (36) on the right-hand side of the boot. Lay branch
II/5,
cable colour red/yellow, to the fuse holder (36)
and connect it to slot No. 4 on the right-hand fuse strip IV X10018. Insert the 10 A fuse into fuse slot F57.
Connect branch
II/4,
cable colour brown/black, to the ground post X13075 (37) at the right-hand C pillar.
Secure the power supply wiring harness
II
using the cable ties (38).
Lay branches
I/6
and
I/7
from the connection wiring harness
I
along the vehicle wiring harness to the rear centre
console. Install the centre console. Lay branch
I/8,
18-pin socket casing, and branch
I/7,
aerial plug, through the
recess (39) in the rear of the centre console.
See 3.7 To install and connect the eject box, for connection details.
EN/3-45