TOP VEHICLE TECH GRKVW03 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.
V1.0522
GRKVW03
INSTALLATION MANUAL
This dash image is a visual representaon for display purposes only.
VOLKSWAGEN
TRANSPORTER 
2019-UP

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ABOUT THIS PRODUCT
The GRKVW03 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 GRKVW03 gives you everything
you need for a complete install in one box. The components of this kit are compable for the Volkswagen
Transporter (T6.1, 2019-UP) with MIB 2 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.

-




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:  E-Mail: 
CONTENTS
• 1x Fascia plate (with accessories)
• 1x Instrucon manual
• 1x Steering wheel control harness and interface
• 2x Antenna adapters (FM & DAB)
• 1x Stereo patch lead

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


1. Use a panel removal tool to release the plasc panel which surrounds the speedometer. Once free, pull
forward toward the steering wheel without removing completely.
2. Use the panel removal tool to release the front fascia panel. Starng from the right side which is now
uncovered from the speedometer panel, pry this out following with the le air vent. Take due care when
removing this panel as there are roughly 11x retaining clips holding this in place.
2. With the brackets now aached to the fascia plate, proceed to feed the new stereo in between the
brackets. Adjust in accordance to the front of the fascia panel and screw into place with the provided
screws.
3. Once the “Stereo Installaon” process is complete, push the stereo into the dashboard, and complete
the installaon by placing the original fascia trim over top and reassembling the dashboard in reverse
order.
3. Using a set of radio release keys (or a pick tool), undo the 4x spring clips holding the main head unit into
place and remove it completely whilst disconnecng all of the wiring.
1. Using the 4x phillips screws and spacers within the kit, aach the brackets to the appropriate sides of
the new fascia plate.
6. Aach the FM antenna adapter to the vehicles pre-exisng connecon and the back of new stereo. This
adapter features both single and double housings for whichever connector is needed in the vehicle.
Note: for vehicles that need a source of phantom power, use the addional blue wire and aach it to the
rear of the ISO connector in the locaon of ‘antenna remote’. See the vehicle wiring diagram for accurate
locaon.
2. Take the steering wheel control interface and aach the 14-way steering wheel harness connector to
the relevant side.
STEREO INSTALLATION
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.
4. Aach the 4-way camera extension harness to the steering wheel control interface.
5. If the vehicle previously has a DAB antenna, use the DAB antenna adapter within the kit and aach it
between the pre-exisng vehicle connecon and the back of the new stereo to retain this feature.
7. Connect the male yellow RCA to the ‘reverse camera input’ on the back of the new stereo.
1. Take the interface and set the dipswitches accordingly (note that these are default to o):
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

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Please note: conguraon layout may dier dependent on vehicle model.

OK
12
34 5 6
1. Track Back
2. Track Forward
3. Volume +/-
4. Mute 
5. Pick Up/Hang Up
6. Speech 
1. Track Back
2. Track Forward
3. Volume +/-
4. Mute
5. Pick Up/Hang Up
6. Speech
 
In addion, the ‘Driving Mode’ buon can be used as normal. The graphic for the mode will be shown on
the new stereo’s display. Also, the ‘Park Assist’ buon can be used as normal to acvate/deacvate park
assist. Again, the graphic for this mode will be show on the new stereo’s display.
*Note: pressing and holding MUTE or VOICE may acvate the voice assistant (e.g. SIRI) in some vehicles.
If this occurs, double press the buon instead.
- Short press MUTE  or SPEECH  to enter a sub-menu or conrm an opon within a menu.
- Long press MUTE  or SPEECH  to return to the previous 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.


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
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.
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.

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
Vehicle Settings
Infodapter Settings
Car
Language
Version
Back
Configuration Menu
Vehicle Settings
Infodapter Settings
Car
Language
Version
Back
Configuration Menu
Vehicle Settings
Infodapter Settings
Car
Language
Version
Back
Configuration Menu
Press and hold (or double press)  or
VOICE 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.

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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
Driver Position
Camera Connected
Reverse Priority
Park Brake Source
Climate
Restore Factory Settings
Preferences
Back
Right
Yes
Park Assist
Speed
5s

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 ‘Yes’ if an oponal aermarket reverse
camera is connected.

Select whether camera or park assist image is shown by default when reversing.

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 how long the climate display will be shown on the head unit when adjusted. Selectable range is
between 0 (disabled) and 30 seconds

Restores all Infodapter sengs to factory defaults. Note: this does not restore vehicle sengs to defaults.
Vehicle Settings
Infodapter Settings
Car
Language
Version
Back
Configuration Menu
CAR
Within this menu, you are able to view the
vehicle’s trip computer and view vehicle
data which includes distance travelled, fuel
consumpon and more.
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/White - Reverse Gear
Grey - Mute
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


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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: 
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.