TOP VEHICLE TECH KWBMW4 User manual

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The informaon provided in this document is subject to change without noce due to changes and/or
improvements to the product/s.
This dash image is a visual representaon for display purposes only.
V1.0421
KWBMW4
INSTALLATION MANUAL
BMW 3 SERIES
(E90/91/92/93)
2005-2012

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ABOUT THIS PRODUCT
The KWBMW4 installaon kit allows for the retenon of the vehicle’s steering wheel controls and maintains
the original aesthec of the interior when installing a new car stereo. The KWBMW4 gives you everything
you need for a complete install in one box. The components of this kit are compable for the BMW 3 Series
(E90/91/92/93) (2005-2012) with non-amplied BMW Business Professional stereos. The wiring harness and
interface will retain the steering wheel controls, factory phone buons, as well as retaining parking sensor audio
and warning tones (i.e. oil level, seat belt, door open). Supplied with a Quadlock connector.
NB: this installaon kit is for vehicles without navigaon or iDrive as standard. Vehicles must have automac
A/C panel.
CUSTOMER SUPPORT
Installaons should be carried out by, or under the guidance of an experienced installer. If you do encounter any
problems during the installaon of this product, then please contact our dedicated customer service team at:
Phone: [phone] E-Mail: [e-mail]
CONTENTS
• 1x Fascia plate (with accessories)
• 1x Pocket relocaon panel (gloss black)
• 1x Instrucon manual
• 1x Steering wheel control harness and interface
• 1x Antenna adapter
• 1x DAB antenna adapter
• 1x Stereo patch lead

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FITTING GUIDE
1. Open the passenger side door and proceed to pull away the door trim from the pillar.
STEREO REMOVAL
DAB ANTENNA INSTALLATION
2. Using a set of panel removal tools, begin to pry away the pillar casing.
4. The DAB antenna not only has a self adhesive backing, but also features a black earth sheet. When
placing the DAB antenna, the earth sheet MUST be placed onto the metal part of the pillar. The antenna
itself must be located roughly 15cm from the top of the windscreen.
Note: this antenna must not be placed atop any kind of heang elements, this will interfere with the
antenna’s signal.
5. Once happy with the placement, take the 3m of wiring extension and feed it down through to the
stereo’s opening. With the wiring adjusted to the appropriate length, feel free to re-install the glovebox.
3. The glovebox will need to be dropped down to route the antennas wiring. To do this you will need to
remove the clip holding the hydraulic arm in place. Then all that is needed is to let the glovebox fall open.
2. Using a bojo tool again, remove the cilmate control panel and disconnect any/all wiring from behind.
3. With the climate control panel removed, this will reveal 2x screws that will need to be undone to free
the main radio. Once free, pull out of the dashboard and disconnect all the wiring.
FASCIA PLATE SET-UP
1. Take the OEM air con panel and begin to unclip the automac air con unit, this can go directly into the
new fascia.
2. Undo the 5x screws that surround the back casing of the buon panel and remove the PCB board. Once
out, gently disconnect the white connector. Re-connect the white connector found on the replacement
ribbon extension cable which comes with the kit.
3. Proceed to mount the PCB with buon front/back to the new pocket relocaon panel. Connect the
black connector on the lead to the air condioning panel and route the wiring neatly to the side.
4. With the radio removed, you will then need to remove the 4x screws and 2x bolts that hold the plasc
cage into place. Once these screws and bolts are undone, remove the cage completely.
1. Begin by using a bojo tool to remove the panel that surrounds the gear sck. Once free, disconnect the
wiring that is connected to the pocket.
4. Undo the screws that surround the current pocket. Once free, you will need to transfer the cigaree
lighter from the OEM pocket to the new relocaon panel.
5. With the new relocaon panel correctly congurated, you can proceed to screw this into the gear sck
panel using the pre-exisng screws.
7. When happy with the alignment, and the “Stereo Installaon” process is complete, screw the stereo
into the dashboard using the pre-exisng screws. Then simply install the fascia on top.
6. Aach the brackets to the new stereo using the screws within the kit. With the brackets aached, oer
the whole unit to the back of the fascia and test t within the vehicle to gauge the correct depth.

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FITTING GUIDE
STEREO INSTALLATION
8. Aach the addional wiring on the harness to the back of the stereo:
Pink - Speed Pulse Pink/Black - Mute Purple - Reverse Gear Green - Park Brake
9. When all the above wires (and any addional accessories) have been connected, nally make the
connecons between the stereo and the vehicles pre-exisng power/stalk connectors.
3. Aach the 12-pin connector from steering wheel harness to the speaker interface box.
2. Connect the bullet connector from the stereo patch lead to the ‘steering wheel remote input’ on the
back of the new stereo.
6. Connect the DAB antenna’s SMB connector to the back of the new stereo.
7. Aach the antenna adapter to the vehicles pre-exisng connecon and the back of new stereo.
1. Take the steering wheel control interface in hand and connect both the 12-way stereo patch lead and
the 14-way steering wheel harness connectors to the corresponding sides.
4. On the opposite side of the speaker interface box will be two 2-pin ports. Connect the 2-pin connector
from the speaker box into the right port (when face up).
5. Connect the yellow 12V permanent wire to a source of 12 volt i.e. the fuse board or direct to baery.

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Please note: conguraon layout may dier dependent on vehicle model.
STEERING WHEEL CONTROL FUNCTIONALITY
1
2
3
4
56
7
1. Volume +
2. Volume -
3. Mute
4. Pick Up (Short Press) Hang Up (Long Press)
5. Source
6. Track +
7. Track -
1. Volume +
2. Volume -
3. Speech
4. Pick Up
5. Source
6. Track +
7. Track -
Original Buon New Funcon

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Male ISO Connector
Connect to aftermarket stereo
Quadlock Connector
Connect to quadlock connector from vehicle
Main Wiring Loom
Connector [14 Pin]
Connect to Interface Box
Interface Box
Flying Wires
Pink - Speed Pulse
Green - Park Brake
Purple - Reverse Gear
Pink/Black - Mute
Speaker Box
Speaker Box
Connector [2-pin]
Connect to Speaker
Interface Box (right).
Stereo Patch Lead Connector [12 Pin]
Connect to Interface Box
Note: Must be connected first, before
power connection is made to the
interface
Stereo Patch Lead Bullet Connector
Connect to ‘Steering Wheel Remote
Input’ on back of the stereo.
Main Wiring Loom
Connector [12 Pin]
Connect to Speaker
Interface Box
Speaker
Interface
Box
Yellow 12V
Permanent Wire
Connect to source
of 12V (fuse board
or direct to battery)
WIRING DIAGRAM

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NOTES

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If at any point you experience any problems and need any assistance before, during or aer the
installaon process, please contact us via :
Phone: [phone]
E-Mail: [e-mail]
Mon - Fri 9am - 5.30pm GMT
TECHNICAL ASSISTANCE
If you would like to download a digital copy of this manual, or any other product, then please
visit the www.topvehicletech.com website.
This manual is considered correct at the me of prinng but is subject to change. For the latest
manuals & updates, refer to our website.
Copyright 2021 by TopVehicleTech.
All rights reserved. No part of this publicaon may be reproduced, distributed or transmied
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mechanical methods, without the prior wrien permission of the author.