TOP VEHICLE TECH GRKBM02 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.
V1.0522
GRKBM02
INSTALLATION MANUAL
This dash image is a visual representaon for display purposes only.
BMW 1 SERIES
(E81/82/87/88)
2007-2013

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ABOUT THIS PRODUCT
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 Stereo patch lead
The GRKBM02 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 GRKBM02 gives you everything
you need for a complete install in one box. The components of this kit are compable for the BMW 1 Series
(E81/82/87/88) (2007-2013) 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 manual
A/C panel.

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FITTING GUIDE
STEREO REMOVAL
FASCIA PLATE SET-UP
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.
1. Use a bojo tool to pry away and unclip the middle trim panel above the main radio.
2. Using the bojo tool again, pry away the plasc panel holding the air controls & buon panel. Once out,
proceed to disconnect any/all wiring from behind.
3. With the air control panel removed, it 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.
1. Take the OEM air con panel and begin to unclip the manual 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 fascia panel. Connect the black connector
on the lead to the air condioning panel and route the wiring neatly to the side.
5. 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.
4. 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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1. Take the steering wheel control interface and aach the 14-way steering wheel harness connector to
the relevant side.
6. Connect the antenna adapter to both the pre-exisng vehicle connecon and to the back of the new
stereo.
FITTING GUIDE
STEREO INSTALLATION
7. 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
8. 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.
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.
2. Make a cut within the orange and purple loops on the back of the patch lead connector. Then proceed
to aach ‘Key 1’ to the light blue ‘SWC Remote’ wire on the stereo. When done, connect the 12-way
connector to the steering wheel control interface.

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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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WIRING DIAGRAM
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
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).
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)
Interface Box
Stereo Connection (Patch)
Lead Connector [12 Pin]
Connect to Interface Box
Note: Must be connected
first, before power
connection is made to the
interface

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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 2022 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.