TOP VEHICLE TECH KWBMW12 User manual

www.topvehicletech.com
The informaon provided in this document is subject to change without noce due to changes and/or
improvements to the product/s.
V1.0421
KWBMW12
BMW
3 SERIES (F30/31/34)
4 SERIES (F32/33/36)
2012-2016
INSTALLATION MANUAL
This dash image is a visual representaon for display purposes only.

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ABOUT THIS PRODUCT
The KWBMW12 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 KWBMW12 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
(F30/31/34) and BMW 4 Series (F32/33/36) (2012-2016) with MOST amplied NBT iD5 systems. The harness
and interface retains steering wheel controls, phone buons, amplier retenon and select vehicle sengs. It
will also generate parking sensor graphics and provides an input for a reverse camera (sold separately).
Supplied with Quadlock connector.
NB: this kit is for amplied vehicles.
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 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.
DAB ANTENNA INSTALLATION
2. Using a set of panel removal tools, begin to pry away the pillar casing.
5. 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.
6. 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. Firstly undo the 2x screws
that hold the kick panel in place and disconnect the wiring whilst removing.
DASH MODIFICATION
Some plascs will need to be cut and removed from the dashboard to make space for the new car stereo.
Measure where the stereo will sit and take due care when modifying the vehicle. TopVehicleTech always promote the
help of professional installers. TopVehicleTech will not be held responsible for any damage to the vehicle.
STEREO REMOVAL
2. Using a bojo tool again, remove the air vent panel/air vents, when free, pull out of the dashboard and
disconnect the wiring behind.
3. Remove the 4x screws that surround the main radio/climate control panel. Once free, pull away from
the dashboard and disconnect the wirng.
4. With the main panel removed, undo the 2x scews on either side of the main radio and remove it whilst
disconnecng all of the wiring.
1. Begin by using a bojo tool to remove the panel below the climate control assembly and disconnect the
wire in the process.
5. Undo the two screws that hold the top display in place. You will need to remove the top display from
the dashboard to disconnect the LVDS connecon. Note that the screens are delicate, so do take your me
with this step of the process. Once out and undone, leave to one side.
4. With the kick panel out of the way, you will then need to undo 2x bolts underneath as well as 3x screws
within the lip and 1x on the side of the glovebox. Once free, simply leave in the footwell.

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FITTING GUIDE
STEREO INSTALLATION
FASCIA PLATE SET-UP
16. Aach the addional wiring on the harness to the back of the stereo:
Pink - Speed Pulse Brown - Mute Purple - Reverse Gear Green - Park Brake
17. 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 connectors.
8. Connect the bullet connector from the stereo patch lead to the ‘steering wheel remote input’ on the
back of the new stereo.
14. Connect the DAB antenna’s SMB connector to the back of the new stereo.
15. Aach the antenna adapter to the vehicles pre-exisng connecon and the back of new stereo.
7. 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.
9. Connect the female molex on the harness to the male molex on the data extension cable.
4. 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 re-connect any wiring and install the new fascia
over the stereo.
1. Take the climate control panel and relocate the climate control buons out and into the new fascia.
Ensure when placing that the middle clip is lined up correctly for the perfect t.
2. 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.
3. If the OEM panel has an LED located above the ashtray, this can be relocated into the housing provided
on the new fascia.
1. Start by aaching the LVDS extension to the display, this can then be put back in place. Then route the
rest of the LVDS cable through the glovebox and then toward the rear of vehicle.
2. You will also need to extend the following wires to the rear of the vehicle: Yellow 12V Permanent, Black
Data Extension, Female Quadlock connector (with male molex & ground terminal).
4. With the wires routed, you will need to connect the yellow 12V permanent wire to a source of 12 volt in
the rear of vehicle i.e. the fuse board or direct to baery.
REAR STEREO CONNECTIONS
3. Take the OEM stereo and re-locate it to a suitable posion in the rear of the vehicle i.e. by the amplier.
5. Connect the data extension cable to the molex connector situated on the female Quadlock connector.
At this point the ground terminal on the Quadlock connector must be aached to a non-live element.
6. Connect the LVDS connector and Quadlock connector to the OEM unit. This can then be tucked away.
FRONT STEREO CONNECTIONS
10. Connect the 2 pin connector on the harness to the speaker box.
13. Connect the ground terminal to a non-live element within the dash cavity.
11. Connect the Red & White RCA connectors on the harness to the back of the stereo.
12. Take the Amplier Interface that comes with the kit and aach both the 8 pin connector from the
harness as well as the vehicles pre-exisng bre connecon.

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Please note: conguraon layout may dier dependent on vehicle model.
STEERING WHEEL CONTROL FUNCTIONALITY
MODE
3
1
4 6
5
2
1. Track +/- (Scroll) Push in for Mute
2. Mode / OEM Unit Control
3. Speech
4. Pick Up (Short Press) Hang Up (Long Press)
5. Volume +
6. Volume -
1. Track +/- (Scroll)
2. Mode
3. Speech
4. Pick Up
5. Volume +
6. Volume -
Original Buon New Funcon
OEM Unit Control
If the OEM head unit has been retained during the installaon, hold ‘Mode’ (2) for approx 8-10 seconds
unl a chime is heard from the interfaces ‘speaker box’.
The steering wheel controls will now control the OEM head unit, allowing you to interact with the vehicles
previous sengs. To revert back to the aermarket stereo control, press and hold ‘Mode’ (2) for approx
8-10 seconds.

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Male ISO Connector
Connect to aftermarket stereo
Quadlock Connector [Male]
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
Brown - Mute
Speaker Box
Speaker Box
Connector [2 Pin]
Connect to
Speaker Box .
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.
Yellow 12V Permanent Wire
Connect to source of 12V (fuse board or direct to battery)
LVDS Connector [Male]
Connect male connector
to the OEM display.
Quadlock Connector [Female]
Connect to re-routed OEM
head unit (in boot). Data Extension Cable [Male to Female, 4 Pin]
Route to the OEM head unit (in boot) and connect to relevant
molex connectors beside Quadlock connectors.
Ring Terminal
Connect to a
source of ground
Ring Terminal
Connect to a source of ground
LVDS Connector [Female]
Connect female connector to the
re-routed OEM head unit (in boot).
White/Red RCA Connectors
Connect to aftermarket stereo
Fibre Amplifier
Connector
Remove dust cover
and connect fibre
connection from
vehicle to interface. MOST Amplifier
Connector [8 Pin]
Connect to Amplifier
Interface.
Amplifier Interface
WIRING DIAGRAM

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Male ISO Connector
Connect to aftermarket stereo
Quadlock Connector [Male]
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
Brown - Mute
Speaker Box
Speaker Box
Connector [2 Pin]
Connect to
Speaker Box .
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.
Yellow 12V Permanent Wire
Connect to source of 12V (fuse board or direct to battery)
LVDS Connector [Male]
Connect male connector
to the OEM display.
Quadlock Connector [Female]
Connect to re-routed OEM
head unit (in boot). Data Extension Cable [Male to Female, 4 Pin]
Route to the OEM head unit (in boot) and connect to relevant
molex connectors beside Quadlock connectors.
Ring Terminal
Connect to a
source of ground
Ring Terminal
Connect to a source of ground
LVDS Connector [Female]
Connect female connector to the
re-routed OEM head unit (in boot).
White/Red RCA Connectors
Connect to aftermarket stereo
Fibre Amplifier
Connector
Remove dust cover
and connect fibre
connection from
vehicle to interface. MOST Amplifier
Connector [8 Pin]
Connect to Amplifier
Interface.
Amplifier Interface
WIRING DIAGRAM

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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
in any form or by any means, including photocopying, recording, copying or other electronic or
mechanical methods, without the prior wrien permission of the author.