TOP VEHICLE TECH GRKVX04 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
GRKVX04
INSTALLATION MANUAL
This dash image is a visual representaon for display purposes only.
VAUXHALL
ADAM 2012-2019
CORSA 2014-2019

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ABOUT THIS PRODUCT
The GRKVX04 installaon kit allows the retenon of the vehicle’s steering wheel controls and helps to maintain
the original aesthec of the interior when installing a new car stereo. The GRKVX04 gives you everything you
need for a complete install in one box. The components of this kit are compable for the Vauxhall Adam (2012-
2019) and the Corsa (2014-2019) with basic, non-naviagon factory stereos. The wiring harness and interface
will retain the steering wheel controls and factory phone buons (if vehicle is equipped). It also helps retain
vehicle sengs, parking sensor graphics and climate control visualisaon which would have been lost with a
regular installaon kit. The interface supplied features a Quadlock 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: 
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
STEREO REMOVAL

1. Use a panel removal tool to remove air vent panel. Once free, remove from the dashboard whilst dis-
connecng the hazard switch.
2. With the air vent panel removed, undo the 2x screws located at the top of the main fascia panel.
2. 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 forward/backwards.
3. When happy with the alignment of the brackets, and the “Stereo Installaon” process is complete,
screw the stereo into the dashboard using the pre-exisng screws and placing the new fascia overtop,
whilst reconnecng the buons. Reassemble the dashboard in reverse order to complete the installaon.
3. Use the panel removal tool to carefully undo the clip holding the middle post in place. Once done, pull
the fascia forward and disconnect both buons on either side.
4. Connect the antenna adapter to both the pre-exisng vehicle connecon and to the back of the new
stereo.
2. Take the steering wheel control interface and aach the 14-way steering wheel harness connector to
the relevant side.
STEREO INSTALLATION
5. Aach the 4-way camera extension harness to the steering wheel control interface.
6. Aach the speaker to the interface using the 2-way connecon.
7. Connect the male yellow RCA to the ‘reverse camera input’ on the back of the new stereo.
4. Undo the 4x screws that surround the main head unit and remove it whilst disconnecng all the wiring.
1. Using the panel removal tool, remove the buons from the old fascia and transfer them into the
appropriate locaons in the new fascia.
ON (DOWN) OFF (UP)
DIPSWITCH 1 Pioneer head units All other head units 
DIPSWITCH 2 Reverse Camera PAL Reverse Camera NTSC 
DIPSWITCH 3 Reset factory sengs (switch) Reset factory sengs 
DIPSWITCH 4 Not Used Not Used
1. Take the interface and set the dipswitches accordingly (note that these are default to o):
8. Connect the aermarket reverse camera (if required) to the female yellow RCA on the camera extension
harness.
Note: ensure the ‘Camera Connected’ opon in the ‘Preferences’ menu is set to ‘Yes’ for the camera to
funcon correctly.
3. 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/Speech
6. Hang Up/Mute
7. Source 
1. Volume +
2. Volume -
3. Track +
4. Track -
5. Pick Up/Speech
6. Hang Up/Mute
7. Source
 
- Long press SOURCE  to access the conguraon menu.
- Press TRACK + to scroll up through the menu items, or to increment an opon within a menu.
- Press TRACK - to scroll down through the menu item, or to decrement an opon within a menu.
- Short press SOURCE  to enter a sub-menu or conrm an opon within a menu.

FITTING GUIDE
STEREO INSTALLATION CONT’D
9. Aach the addional wiring on the harness to the back of the stereo:
- Speed Pulse  - Park Brake  - Reverse  - Mute  - Amp Remote Out
10. When all the above wires (and any addional accessories) have been connected, nally make the
power connecons between the stereo and the vehicles pre-exisng connector.

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CONFIGURATION MENU FUNCTIONALITY
Vehicle Settings
Infodapter Settings
Language
Version
Back
Configuration Menu
Vehicle Settings
Infodapter Settings
Language
Version
Back
Configuration Menu
Vehicle Settings
Infodapter Settings
Language
Version
Back
Configuration Menu
Press and hold SOURCE to enter into the
conguraon menu.
From here you will then be able to use the
steering wheel controls to navigate through
the various opons and sengs below.
VEHICLE SETTINGS
This interface retains the ability to adjust
selected vehicle sengs* on the new stereo
that were present when the original head unit
was installed.
The opons available will depend on the
individual vehicle and system specicaon.
These might include lights, locks, mirrors, me
& date and much more.
*See the vehicle handbook for more informaon
regarding these features and how they operate.
INFODAPTER SETTINGS
These sengs allows you to edit the layout/
look of the menu screens. These opons
include:

Change the horizontal and vercal screen size/
posion to align on the new stereo display.

Adjust the brightness, contrast and colour
saturaon.

Change opons based on vehicle funconality
and specicaon (see page 6).

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WIRING DIAGRAM
Restore Factory Settings
Preferences
Driver Position Right
Park Assist Version 0
Reverse Priority Park Assist
Park Brake Source Speed
Steering Wheel 7 Function
Back
Camera Connected Yes
Bluetooth On
Logo

This sub-menu (found within the Infodapter
Menu) allows you to adjust various details
specic to the vehicle. These include:

Select Le or Right depending upon whether
the vehicle is le or right-hand drive.

Select the desired colour conguraon of the
park assist graphic you want showcased on
the vehicle.

Select ‘Yes’ if an oponal aermarket reverse
camera is connected.

Select which output (camera or park assist image) is shown by default when reversing. The driver can then
switch between these outputs whilst reversing by short pressing the SOURCE buon.
Note: this opon is only available when Camera Connected is set to ‘Yes’.

Set Park Brake output to acvate when park brake is on (Park), when speed is less than 3km/h (Speed) or
to remain on at all mes (Always On)

Select ‘On’ if the new stereo has Bluetooth built in. The PICK UP and HANG UP buons on the steering
wheel will then be enabled.

Select between either ‘6 Funcon’ and ‘7 Funcon’ dependent on the previous vehicle display.

Select the relevant vehicle or head unit brand logo which you would prefer to be shown on the dash
display on start up. Note: this opon will only appear for supported four line dash displays. This feature is
not supported by OEM navigaon displays.

Restores all Infodapter sengs to factory defaults. Note: this does not restore vehicle sengs to defaults.
LANGUAGE
Here you are able to select which language the vehicle menu’s are displayed in (English/French/German
etc.)
VERSION
Here you can view the current version soware installed on the interface.

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ISO Connector
Connect to new stereo
Quadlock Connector
Connect to quadlock connector from vehicle
Stereo Connection (Patch) Lead Connector [12 Pin]
Connect to Interface Box
Note: Must be connected first, before power
connection is made to the interface
Main Wiring Loom Connector [14 Pin]
Connect to Interface Box
Flying Wire Outputs
Pink - Speed Pulse
Green - Park Brake
Purple - Reverse Gear
Yellow/Black - Mute
Blue - Amp Remote Out
Male Yellow RCA Connector
Connect to aftermarket radio
camera input
Female Yellow RCA Connector
Connect reversing camera
(optional)
Camera Harness
Connector [4 Pin]
Connect to Interface Box
Speaker Box Connector [2-pin]
Connect to Speaker Interface
Box Connection
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: 
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.