NavLinkz RL4-MGU User manual

Version 08.07.2022 HW:CAM(V100)/(V30.3) RL4-MGU
Video inserter
RL4-MGU
Compatible with
BMW vehicles F-and G-series
with MGU infotainment and 10.25 or 12.3inch monitor and HSD+2 plug
Video-inserter for one rear-view camera, one front camera
and two additional video inputs
Product features
Video-inserter for factory-infotainment systems
CVBS Input for one rear-view camera
CVBS Input for one front camera
2 CVBS Video-inputs for after-market Video sources (e.g. DVD-Player, DVB-T Tuner)
Automatic switching to rear-view camera input on engagement of the reverse gear
Automatic front camera switching after disengaging reverse gear for 10 seconds
Activatable parking guide lines for rear-view camera (not available for all vehicles)
Video-in-motion (ONLY for connected video-sources)
Video-inputs NTSC and PAL compatible

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Contents
1. Prior to installation
1.1. Delivery contents
1.2. Checking the compatibility of vehicle and accessories
1.3. Boxes and connectors –video interface
1.4. Settings - 8 Dip switches (black)
1.4.1. Activating the front camera input (dip 1)
1.4.2. Enabling the interface’s video inputs (dip 2-3)
1.4.3. Activating the PDC function (dip 4)
1.4.4. Rear-view camera setting (dip 5)
1.4.5. Activating the guide lines (dip 6)
1.4.6. Monitor selection (Dip 7 and 8)
1.5. Settings - 4 Dip switches (CAN function –red)
2. Installation
2.1. Place of installation
2.2. Connection schema
2.3. Connection to factory head unit and monitor
2.3.1. Connection - picture signal cable
2.3.2. Connection –Power and CAN
2.3.3. Analog power supply
2.4. Power supply output
2.5. Connection - video-sources
2.5.1. Audio insertion
2.5.2. After-market rear-view camera
2.5.2.1. Case 1: Interface receives the reverse gear signal
2.5.2.2. Case 2: Interface does not receive the reverse gear signal
2.6. Connection - video-interface and external keypad
2.7. Picture settings and guide lines
3. Interface operation
3.1. By factory infotainment button
3.2. By keypad
4. Specifications
5. FAQ –Trouble Shooting-Interface functions
6. Technical support

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Legal Information
By law, watching moving pictures while driving is prohibited, the driver must not be
distracted. We do not accept any liability for material damage or personal injury resulting,
directly or indirectly, from installation or operation of this product. Apart from using this
product in an unmoved vehicle, it should only be used to display fixed menus or rear-view-
camera video when the vehicle is moving (for example the MP3 menu for DVD upgrades).
Changes/updates of the vehicle’s software can cause malfunctions of the interface. Up to
one year after purchase we offer free software-updates for our interfaces. To receive a free
update, the interface has to be sent in at own cost. Wages for de-and reinstallation and
other expenditures involved with the software-updates will not be refunded.
1. Prior to installation
Read the manual prior to installation. Technical knowledge is necessary for installation. The
video interface’s place of installation must be free of moisture and away from heat sources.
Before the final installation in the vehicle of the video sources, we recommend a test-run
to ensure the compatibility of vehicle and interface. Due to changes in the production of
the vehicle manufacturer there’s always a possibility of incompatibility.
1.1. Delivery contents
'[e-mail]'
Take down the serial number of the interface and store this manual for support
purposes: ____________________

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Requirements
Brand
Compatible vehicles for
Compatible systems
BMW
F-series vehicles and G-series vehicles with
MGU (new main menu + new iDrive + LCI or
new F/G seri from 2019)
Send VIN and picture of main-menu for
identification
S609A Professional Navigation, S6UPA Navigation
Plus, Live Cockpit Professional S6U3A - Only MGU
head-unit by Harman with 10.25 or 12.3inch
monitor.
Not compatible with F40 S6U2A MGU 8.8inch and
F44 S6U3A MGU by Alpine.
Limitations
Video only The interface inserts ONLY video signals into the infotainment. For inserting Audio
signals either the possibly existing factory audio-AUX-input or a FM-modulator can
be used. If 2 audio sources shall be connected to the infotainment, an additional
electronic is necessary to switch them.
Factory rear-view camera Automatically switching-back from inserted video to factory rear-view camera is only
possible while the reverse gear is engaged. To delay the switch-back an additional
electronic part is required.
After market front camera The front camera will automatically be switched for 10 seconds after disengaging
the reverse gear. A manually front camera switching is also possible for 7 seconds.
Dynamic guidelines Displayed dynamic guidelines are not available in all vehicles.
PDC display The PDC display does not work in all vehicles.
1.2. Checking the compatibility of vehicle and accessories

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1.3. Boxes and connectors –video interface
The video-interface converts the video signals of connected after-market sources in a factory
monitor compatible picture signal which is inserted in the factory monitor, by using separate
trigger options. Further it reads the vehicle’s digital signals out of the vehicle’s CAN-bus and
converts them for the video interface.
1.4. Settings - 8 Dip switches (black)
Some settings have to be selected by the dip-switches of the
video interface.
Dip position down is ON and position up is OFF.
See the following chapters for detailed information.
After each Dip-switch-change a power-reset of the Can-box has to be performed!
Dip
Function
ON (down)
OFF (up)
1
Front camera
enabled*
disabled
Power supply
output
(red wire)
+12V (max. 3A) when reverse gear
is engaged incl. 10 seconds delay
and +12V by manual switching to
front camera by keypad
+12V (max. 3A) ACC
2
CVBS AV1-input
enabled
disabled
3
CVBS AV2-input
enabled
disabled
4
PDC
enabled
disabled
5
Rear-view cam type
after-market
factory or none
6
Guide lines
enabled
disabled
7
Monitor
adjustments
Try all possible combinations of Dips 7 and 8 to receive
the best picture (quality and size)
8

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1.4.1. Activating the front camera input (dip 1)
If set to ON, the interface switches for 10 seconds from the rear-view camera to the front
camera input after having disengaged the reverse gear. In addition, a manual switch-over to
the front camera input is possible via keypad (short press) from any image mode.
Description of the front camera power supply: see chapter “Power supply output”.
1.4.2. Enabling the interface’s video inputs (dip 2-3)
Only by dip switches enabled video inputs can be accessed by switching through the
interface’s video sources. It is recommended to enable only the required inputs. Disabled
inputs will be skipped while switching through the video interfaces inputs.
1.4.3. Activating the PDC function (dip 4)
When set to ON, the PDC car is displayed on the monitor and the distances are displayed,
based on the CAN data received.
Note: If the interface does not receive data from the vehicle CAN bus (some vehicles are not
compatible), the parking distance cannot be displayed. In this case, set dip4 to Off.
1.4.4. Rear-view camera setting (dip 5)
If set to OFF, the interface switches to factory picture while the reverse gear is engaged to
display factory rear-view camera or factory optical park system picture.
If set to ON, the interface switches to its rear-view camera input while the reverse gear is
engaged.
1.4.5. Activating the guidelines (dip 6)
If set to ON, the interface is activated to show the guide lines for the rear-view camera while
the vehicle is in reverse mode (not available for all vehicles).
Note: Some vehicles have a different code on the CAN-bus which the video-interface is not
compatible with. If the interface does not completely communicate with the vehicle CAN
bus, the reverse gear guide-lines can`t be shown during the vehicle’s operation, even if they
in some vehicles once appear after having switched the system to powerless!
1.4.6. Monitor selection (dip 7 and 8)
Dip7 and 8 change the monitor-specific video settings.
Try all possible combinations of Dips 7 and 8 to receive the best picture (quality and size)
After each Dip-switch-change a power-reset of the Can-box has to be performed!

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1.5. Settings of the 4 Dip switches (CAN functions –red)
Dip position down is ON and position up is OFF.
Set all dip switches according to the table:
Fahrzeug/Navigation
Dip 1
Dip 2
Dip 3
Dip 4
MGU
OFF
ON
ON
OFF
After each Dip-switch-change a power-reset of the Can-box has to be performed!
2. Installation
To install the interface, first switch off the ignition and disconnect the vehicle’s battery.
Please read the owner`s manual of the car, regarding the battery`s disconnection! If
required, enable the car`s Sleep-mode (hibernation mode)
In case the sleep-mode does not succeed, the disconnection of the battery can be done
with a resistor lead.
If the necessary stabilized power supply for the interface is not taken directly from the
battery, the chosen connection has to be checked for being constantly stabile.
The interface needs a permanent 12V source!
Before a final installation, we recommend a test-run to ensure the compatibility of the
vehicle and the interface. Due to changes in the production of the vehicle manufacturer
there’s always a possibility of incompatibility.
2.1. Place of installation
The video interface is prepared to be installed in a suitable location behind the factory head
unit.
In most vehicles, the centre console must be removed for this purpose.
The connection is made to both, the head unit and the monitor.

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2.2. Connection schema

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2.3. Connections to factory head-unit and monitor
2.3.1. Connection - picture signal cable
Disconnect the factory picture signal cable’s bordeaux coloured HSD+2 connector from the
rear-side of the monitor and connect it to the bordeaux coloured HSD+2 connector
„HU IN“of the video interface .
Connect the angled bordeaux coloured HSD+2 connector of the enclosed picture signal cable
to the previously become free bordeaux coloured HSD+2 connector at the monitor’s rear
side.
Connect the opposite none-angled bordeaux coloured HSD+2 connector of the enclosed
picture signal cable to the bordeaux coloured male HSD+2 connector „TO LCD“of the video
interface.
Attention: The picture signal cable’s connecting direction doesn’t have an impact on the
system’s function, so that the angled and not-angled HSD+2 connectors are allowed to be
interchanged, depending on the HSD+2 connectors mounting space.
However, mixing up/interchanging the connections of „HU IN“ and „TO LCD“ will cause
dysfunktion or even damage to the system!
Note: The colours of the HSD+2 connectors at monitor and head unit may vary.

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2.3.2. Connection –Power and CAN
Connect the female 10pin connector of the 10pin PNP Power / CAN cable to the 10pin
connector of the video interface.
Remove the female 16pin connector of the vehicle harness from the rear-side of the head-
unit and connect it to the male 16pin connector of the 10pin PNP Power / CAN cable.
Connect the opposite female connector of the 10pin PNP Power / CAN cable to the
previously become free male 16pin connector at the rear-side of the head unit.

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2.3.3. Analog power supply
If, after connecting the PNP harness, no interface LED lightens up while the ignition is
turned on, the purple-coloured wire Manual ACC of the 12pin interface cable has to
be connected additionally to ACC or S-contact terminal 86s +12V (e.g. glove
compartment illumination).
Note: With analogue connection of the video interface (without CAN bus), the
connection of the rear-view camera must also be made manually.
(see point 2.5.2.2.: Case 2: Interface does not receive a reverse gear signal).

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2.4. Power supply output
The red power supply output ACC/front cam out 12V (max 3A) can be used to power an
external source and has a different assignment depending on the position of dip switch 1
(of the black 8 dips):
Dip
Function
Dip 1 ON
+12V (max. 3A) when reverse gear is engaged incl. 10 seconds
delay* after reverse gear is disengaged and
+12V by manual switching to front camera by keypad (short
press)
Dip 1 OFF
+12V (max. 3A) ACC

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2.5. Connection - video sources
It is possible to connect an after-market rear-view camera, an after-market front camera and
two more Video sources to the video-interface.
Before a final installation of the video sources, we recommend a test-run to ensure the
compatibility of vehicle and interface. Due to changes in the production of the vehicle
manufacturer there’s always a possibility of incompatibility.
Connect the 12pin interface cable’s female 12pin connector to the male 12pin connector of
the video-interface.
Connect the video RCA of the rear-view camera to the 12pin interface cable’s female RCA
connector “V4 Reverse”.
Connect the video RCA of the front camera to the 12pin interface cable’s female RCA
connector “V3 Front”.
Connect the video RCA of the video source 1 and 2 to the female RCA connector “V1 Left”
and ”V2 Right”of the 12pin interface cable.

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2.5.1. Audio-insertion
This interface is only able to insert video signals into the factory infotainment. If an AV-
source is connected, the audio insertion has to be done by the factory audio AUX input or an
FM-modulator. The inserted video-signal can be activated simultaneously to each audio-
mode of the factory infotainment. If 2 AV sources shall be connected to the infotainment,
additional electronic is necessary to switch the audio signals.
2.5.2. After-market rear-view camera
Some vehicles have a different reverse gear code on the CAN-bus which the video-interface
is not compatible with. Therefore, there are two different ways of installation. If the video
interface receives a signal of the reverse gear, the green wire “Reverse-OUT” of the 12pin
cable should carry +12V while the reverse gear is engaged.
Note: Do not forget to set video interface’s dip5 to ON before testing.
2.5.2.1. Case 1: Interface receives the reverse gear signal
If the interface delivers +12V on the green output wire of the 12pin interface cable while
reverse gear is engaged, the video interface will automatically switch to the rear-view
camera input “V4 Reverse”while the reverse gear is engaged.
Additionally, the +12V (max. 3A) power supply for the rear-view camera can be taken
from the green wire of the 12pin interface cable.

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2.5.2.2. Case 2: Interface does not receive the reverse gear signal
If the video interface does not deliver +12V on the green wire of the 12pin cable when
reverse gear is engaged (not all vehicles are compatible), an external switching signal from
the reverse gear light is required. As the reverse gear light’s power supply isn’t voltage-
stabile all the time, an ordinary open relay (e.g AC-RW-1230 with wiring AC-RS5) or filter
(e.g. AC-PNF-RVC) is required. The diagram below shows the connection type of the relay.
Disconnect the green cable’s preconnected male- and female connectors of the 12pin
interface cable and connect the green input cable “Reverse-IN” to the output
connector (87) of the relay.
Note: Last but not lot least to avoid short circuits, the best solution should be, to
crimp a male 4mm connector to the relay’s output cable and connect it to the green
cable’s female 4mm connector. The output-cable “Reverse-OUT” remains
disconnected as it’s out of function.
Connect the Reverse light’s power-cable to coil (85) and the vehicle’s ground to coil
(86) of the relay.
Connect the output connector (87) of the relay to the rear-view camera’s power-
cable, like you did it to the green “Reverse-IN” cable before.
Connect stabile and permanent +12V to the relay’s input connector (30).

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2.5.3. After-market front camera
The red power supply output ACC/front cam out 12V (max 3A) can be used to power
a front camera. If Dip 1 is set to ON (black 8 dips), the power supply output gives
+12V (max 3A) when reverse gear is engaged …
Note: In addition, a manual switch-over to the front camera input is possible via keypad (short
press) from any image mode. The power supply output gives +12V then, as well (if Dip 1 is set
to ON and the front camera input is selected).
Attention: A long press of the external keypad push button will switch the interface to the
next source.

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2.6. Connection - video-interface and keypad
Connect the female 4pin connector of the keypad to the male 4pin connector of the
12pin interface cable.
Note: Even if switching through several video sources by the keypad mightn’t be required,
the invisible connection and availability is strongly recommended.

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2.7. Picture settings and guide lines
The picture settings are adjustable by the 3 push-buttons at the rear-side of the video-
interface. Press the MENU button to open the OSD settings menu or to switch to the next
menu item. Press UP and DOWN to change the selected value. The buttons are placed inside
in the housing to avoid accidental changes during or after the installation. Picture settings
must be done separately for AV1 and AV2 while the corresponding input is selected and
visible on the monitor.
Note: The OSD menu is only shown when a working video source is connected to the
selected video-input of the interface.
The following settings are available:
Contrast
Brightness
Saturation
Position H (horizontal picture position) *
Position V (vertical picture position) *
Guide-P (position-guide lines)
H-SIZE (horizontal picture size)
V-SIZE (vertical picture size)
*In case of unchageable values, the system supports an automatical picture adjustment.
Note:
To adjust the reverse picture, engage the reverse gear.
To adjust the guide lines, move the steering wheel to see the changes.
If there is no communication between interface and the vehicle`s CAN-bus (several vehicles
aren’t compatible), the reverse gear guide-lines can`t be shown during the vehicle’s
operation, even if they once appear after having switched the system to powerless!

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3. Interface operation
3.1. By factory infotainment button
To switch the interface’s activated video sources; the factory infotainment buttons can be
used.
Press the according infotainment button to switch the input from the factory video to the
inserted video sources. If all inputs are activated by dip switch settings, the order is the
following:
Factory video  Video IN 1  Video IN 2  factory video
Each press will switch to the next enabled input. Inputs which are not enabled will be
skipped.
Switchover by vehicle buttons isn’t possible in all vehicles. In some vehicles the external
keypad has to be used.
3.2. By keypad
Alternatively or additionally to the factory infotainment buttons, the interface’s external
keypad can be used to switch the enabled inputs. Even if not needed, the keypad should
always remain connected to the video interface for support purposes.

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4. Specifications
BATT/ACC range 7V - 25V
Stand-by power drain 20mA
Power 340mA @12V
Video input 0.7V - 1V
Video input formats NTSC and PAL
Temperature range -40°C to +85°C
Dimensions video-box 115 x 25 x 102 mm (W x H x D)