TOP VEHICLE TECH GRKVX03 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
GRKVX03
INSTALLATION MANUAL
This dash image is a visual representaon for display purposes only.
VAUXHALL
ASTRA (J)
2010-2016

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ABOUT THIS PRODUCT
The GRKVX03 installaon kit allows for the retenon of the vehicle’s steering wheel controls and helps maintain
the original aesthec of the interior when installing a new car stereo. The GRKVX03 gives you everything you
need for a complete install in one box. The components of this kit are compable for the Vauxhall Astra (J, 2010-
2016) with factory stereos. The wiring harness and interface will retain the steering wheel controls,
factory phone buons, original vehicle menus as well as the parking sensor audio (if vehicle is equipped).
The interface supplied features an OEM specic connector.
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

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FITTING GUIDE
1. Using a panel removal tool remove the panels surrounding the cigaree lighter panel.
STEREO REMOVAL
FASCIA PLATE SET-UP
1. With the main fascia removed from the dashboard, disengage the clips that hold the air condioning
unit in place and re-locate to the appropriate opening on the new fascia.
2. Then remove the switches from the top of the main fascia panel and re-locate them to the appropriate
openings on the new fasica panel.
4. Once the fascia surround is out of the way, remove the 4x bolts that hold the radio fascia in place and
remove it whilst disconnecng all of the wiring.
3. Once free, work you way up and use a panel remove tool to disconnect the enre fascia surround.
3. Transfer any/all clips from the back of the old fascia panel to the new fascia panel.
2. Pull up the gear surround and undo the 2x screws found toward the rear.
5. Then remove the 4x screws that hold the main radio in place and remove whilst disconnecng all the
wiring.
4. Aach the brackets that come with the kit to the relevant sides of the stereo. Place into the vehicle and
roughly test t with the fascia to measure whether the brackets need moving forwards/backwards.
5. When happy with the alignment of the brackets, and the “Stereo Installaon” process is complete,
screw the stereo into the dashboard ulising the pre-exisng bolts and clip on the new fascia thereaer.

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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.
3. 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
4. Aach the addional wiring on the harness to the back of the stereo:
Pink - Speed Pulse Green - Park Brake Purple - Reverse Blue - Antenna Remote Yellow/Black - Mute
5. 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 connector.
BEFORE INSTALLATION - DIPSWITCHES
On this parcular interface are a set of dipswitches. These dipswitches have the following properes:
1: OFF - Kenwood. ON - Pioneer.
2: OFF - Vehicles with 4 Line Display. ON - Vehicles with 2 Line Display.
3 & 4: No Funcon
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
5
6
7
SRC
1. Volume +
2. Volume -
3. Track +
4. Track -
5. Pick Up
6. Hang Up
7. Source (Short Press), Sengs Menu (Long Press)
1. Volume +
2. Volume -
3. Up Arrow
4. Down Arrow
5. Pick Up/Speech
6. Hang Up/Mute
7. Source
Original Buon New Funcon
1. Long press of ‘Source’ (7.) will enter the Sengs Menu.
2. Use ‘Up & Down Arrow’ (3&4.) to scroll through the menu opons.
3. Short press ‘Source’ (7.) to enter a sub-menu.
4. Short press ‘Source’ (7.) to select the desired opon.
5. Press ‘Hang Up/Mute’ (6.) to go back.
NAVIGATING THE SETTINGS MENU

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WIRING DIAGRAM
ISO Connector
Connect to new stereo
OEM Specific Connector
Connect to 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
Blue - Antenna Remote
Yellow/Black - Mute
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.