
Version 26.02.2021 HW: CAM(V100)/UP(V20) RL4-PCM50
r.LiNK Video inserter
RL4-PCM50
Compatible with
Porsche vehicles with PCM 4.1 und PCM 5.0 infotainment
and 12.3inch monitor
Video-inserter for front- and rear-view camera
and two more video inputs
Product features
• Video-inserter for factory-infotainment systems
• 1 CVBS Input for rear-view camera
• 1 CVBS Input for front camera
• 2 CVBS Video-inputs for after-market Video sources (e.g. USB-Player, DVB-T Tuner)
• Automatic switching to rear-view camera input on engagement of the reverse gear
• Automatic front camera switching after reverse gear for 5,10 or 15 seconds
• Video-in-motion (ONLY for connected video-sources)
• Video-inputs NTSC 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 (dip 1)
1.4.2. Enabling the interface’s video inputs (dip 2-3)
1.4.3. Rear-view camera setting (dip 5)
1.4.4. Activation of the factory PDC display (Dip 6)
1.4.5. Monitor selection (Dip 7-8)
1.5. Settings - 4 Dip switches (CAN function – red)
1.6. Settings - 2 Dip switches (Selection head-unit – black)
2. Installation
2.1. Place of installation
2.2. Connection schema
2.3. Connection - factory head unit
2.3.1. Connection - picture signal cable
2.3.1.1. Vehicles with PCM 4.1
2.3.1.2. Vehicles with PCM 5.0
2.3.2. Connection - Quadlock - CAN
2.3.3. Connection - Power
2.3.4. Analogue power supply
2.4. Power supply output for front cam
2.5. Connection - video-sources
2.5.1. Audio insertion
2.5.2. After-market front camera
2.5.3. After-market rear-view camera
2.5.3.1. Case 1: Interface receives the reverse gear signal
2.5.3.2. Case 2Interface does not receive the reverse gear signal
2.5.4. Switching the Camera Image Formats and Factory PDC Display
2.6. Connection - video-interface and external keypad
2.7. Picture settings
3. Interface operation
3.1. By factory touch screen
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-viewcamera 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
Take down the serial number of the interface and store this manual for support
purposes: ____________________

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Panamera (971) since model year 2017
PCM 4.1 (Harman)
with 12.3inch monitor
911 (992) since model year 2019
Cayenne E3 (PO536) since model year 2018
Cayenne Coupé since model year 2019
Macan since model year 2019
Taycan since model year 2019
PCM 5.0 (Alpine)
with 12.3inch monitor
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 5, 10 or 15
seconds after disengaging the reverse gear. A manually front
camera switching is possible by external keypad.
Full screen mode The full screen mode is indicated with two narrow black stripes
on the right and left edge of the screen!
Guidelines and PDC Displayed guidelines and PDC are not available in all vehicles.
Video input signal Only NTSC video sources compatible
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.

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1.4. Settings - 8 Dip switches (black)
Some settings have to be selected by the dip-switches on the
video interface. Dip position down is ON and position up is OFF.
In case of a non-optimal displayed picture with the mentioned dip settings of dips 7 and 8,
we recommend to try each other possible dip switch combination.
After each Dip-switch-change a power-reset of the Video interface has to be performed!
*The front camera will automatically be switched for 5, 10 or 15 seconds after disengaging
the reverse gear (according to the menu adjustments).
See the following chapters for detailed information.
Power supply
output
(red wire)
+12V (max. 3A) when reverse gear is
engaged incl. delay (5,10 or 15
seconds and +12V by manual
switching to front camera by keypad

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1.4.1. Activating the front camera (dip 1)
If set to ON, the interface switches for 5, 10 or 15 seconds from the rear-view camera to the
front camera input after having disengaged the reverse gear, depending on the menu
adjustments. In addition, a manual switch-over to the front camera input is possible via
keypad (short press) from any image mode.
Description of the power supply output: see chapter “Power supply output for front cam”.
1.4.2. Enabling the interface’s video inputs (dip 2-3)
Only the enabled video inputs can be accessed by switching through the interface’s video
sources. It is recommended to enable only the required inputs. So the disabled inputs will be
skipped while switching through the video interfaces inputs.
1.4.3. 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.
1.4.4. Activation of the factory PDC display (Dip 6)
Dip 6 is used to switch between image formats of front and rear camera and to display the
factory PDC (if available) as „picture in picture“ in combination with the camera image.
For a detailed description, see chapter "Switching the Camera Image Formats and Factory
PDC Display ".
1.4.5. Monitor selection (Dip 7-8)
Dips 7-8 customize the monitor-specific video settings which sometimes even vary within
head units of the same version, caused by different monitor specifications. If the mentioned
dip positions don’t give a satisfying picture, try all possible combinations of dip7 and 8 while
a working video source is connected to the chosen input of the interface. One of the 4
combinations will show the best picture size and quality (some may give no picture). It is
possible to first hot plug through the dip combinations. If there is no change of picture
visible after trying all 4 options, retry and disconnect the 6pin plug at the interface box
between every change of the dip setting.
Note: Dip 4 is out of function and has to be set to OFF!

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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.
After each Dip-switch-change a power-reset of the video interface has to be performed!
1.6. Settings of the 2 Dip switches (selection head-unit - black)
The 2 dip switches on the upper side of the interface box are used to select the head
unit.
Dip position up is ON and position down is OFF.
After each Dip-switch-change a power-reset of the video interface 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!
2.1. Place of installation
The interface is supposed to be installed at a suitable location behind the vehicle`s headunit.

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2.3. Connection - factory head-unit
Remove the head unit
2.3.1. Connection – picture signal cable
2.3.1.1. Vehicles with PCM 4.1
Disconnect the grey female HSD connector (colours may vary) at the rear-side of the head unit and
connect it to the waterblue coloured male HSD connector „TO LCD“ of the video interface.
Connect the female non-angled waterblue coloured HSD connector of the enclosed picture
signal cable to the waterblue coloured HSD+2 connector „HU IN“ of the video interface.
Connect the opposite female angled purple HSD connector of the enclosed picture signal
cable to the previously become free HSD connector of the head unit
Note: Depending on the installation conditions, the enclosed picture signal cable may also
be mounted upside down, concerning it’s HSD connectors . However, it‘s connection must
only be made at the head unit!

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2.3.1.2. Vehicles with PCM 5.0
Disconnect the grey female HSD connector (colours may vary) at the rear-side of the head unit and
connect it to the waterblue coloured male HSD connector „TO LCD“ of the video interface.
Connect the female non-angled waterblue coloured HSD connector of the enclosed picture
signal cable to the waterblue coloured HSD+2 connector „HU IN“ of the video interface.
Connect the opposite female angled purple HSD connector of the enclosed picture signal
cable to the previously become free HSD connector of the head unit
Note: Depending on the installation conditions, the enclosed picture signal cable may also
be mounted upside down, concerning it’s HSD connectors . However, it‘s connection must
only be made at the head unit!

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2.3.2. Connection - Quadlock – CAN
Connect the 10pin power/CAN cable’s female 10pin connector to the 10pin connector of the
video interface.
Disconnect the female Quadlock connector of the vehicle harness from the rear-side of the
head-unit and connect the previously clipped out female 12pin connector to the grey
coloured male 12pin connector of the PNP harness.
Clip in the grey coloured female 12pin connector of the PNP harness in the previously
become free position of the female Quadlock connector.
After that, finish the Quadlock reconnection at the rear-side of the head-unit.

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2.3.3. Connection - Power
Connect the single yellow wire of the 10pin power/CAN cable to +12V permanent and
stabile power supply.
Connect the single black wire of the 10pin power/CAN cable to the vehicle’s negative
ground.

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2.3.4. Analogue 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 additionately to ACC or S-contact terminal 86s +12V (e.g. glove
compartment illumination).

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2.4. Power supply output for front cam
The red power supply output Front cam out +12V (max 3A) can be used to power a front
cam with dip switch 1 (of the black 8 dips) to ON.
+12V (max. 3A) when reverse gear is engaged incl. 10, 15 oder 20
seconds delay* after reverse gear is disengaged and
+12V by manual switching to front camera by keypad (short
press)
*The delay time can be set in the menu (refer to chapter „picture settings“).

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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 „Reverse V4.
Connect the front camera’s video RCA connector to the 12pin interface cable’s female
RCA connector „Front V3“.
Connect the video RCA of the AV source 1 and 2 to the 12pin interface cable’s female RCA
connector “Left (V1)” and ”Right (V2)”.

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2.5.1. Audio-insertion
This interface is only able to insert video signals into the factory infotainment. If an AVsource 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 audiomode 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 front camera
The red power supply output 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
incl. 10, 15 or 20 seconds delay
after reverse gear is disengaged
(refer also to chapter “picture
settings).
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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2.5.3. 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.
2.5.3.1. 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 “Camera IN” 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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2.5.3.2. 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 voltagestabile 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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2.5.4 Switching the Camera Image Formats and Factory PDC Display
Dip 6 (black 8 dips) is used to switch between image formats of front and rear-view camera
and to display the factory PDC (if available) as „picture in picture“ in combination with the
camera image.
Note: The full screen mode is indicated with two narrow black stripes on the right
and left edge of the screen!
Note: The factory PDC display will only be shown in connection with front or
rear view camera display!
Dip6 ON ↓ = full image 22:9
Dip 6 OFF ↑ = Kamera 16:9 + Werks-PDC

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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
The picture settings are adjustable by the 3 push-buttons at the rear-side of the videointerface. 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 all video inputs 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)
Position V (vertical)
Size H/V (picture size horizontal/vertical)
Front-CNTRL Duration of FC switch-back
(10, 15 or 20 seconds)

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3. Interface operation
3.1. By factory touch screen
To switch the interface’s activated video sources, the factory touch screen can be used.
Long press the left top corner of the factory touch screen to switch the video-source.
Long pressing the left top corner of the factory touch screen switches 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 factory touch screen isn’t possible in all vehicles. In some vehicles the
external keypad has to be used.

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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.
➢ Long press of keypad (2-3 seconds)
By long pressing the external keypad (2-3 seconds), the video interfaces witches the input
from the factory video to the inserted video sources. Each long press will switch to the next
enabled input. Inputs which are not enabled will be skipped.
Note: The interface switches after releasing the switch (after long pressure).
➢ Short press of keypad (only if DIP 1 is set to ON)
By short pressing the external keypad, the video interfaces witches from the factory video to
the front camera input and back to factory video.
4. Specifications
BATT/ACC range 7V - 25V
Stand-by power drain 8mA
Power 270mA @12V
Video input 0.7V - 1V
Video input formats NTSC
Temperature range -40°C to +85°C
Dimensions video-box 117 x 25 x 103 mm (W x H x D)

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5. FAQ – Trouble shooting Interface functions
For any troubles which may occur, check the following table for a solution before requesting
support from your vendor.
No picture/black
picture (factory
picture).
Not all connectors have been
reconnected to factory headunit or monitor after
installation.
Connect missing connectors.
No power on CAN-bus box (all
LED CAN-bus box are off).
Check power supply of CAN-bus box. Check CAN-bus
connection of CAN-bus box.
CAN-bus box connected to
CAN-bus in wrong place.
Refer to the manual where to connected to the CANbus. If not mentioned, try another place to connect to
the CAN-bus.
No power on video-interface
(all LED video-interface are
off).
Check whether CAN-bus box delivers +12V ACC on red
wire output of 8pin to 6pin cable. If not cut wire and
supply ACC +12V directly to video-interface.
No picture/black
picture/white picture
(inserted picture) but
factory picture is OK.
No picture from video source.
Check on other monitor whether video source is OK.
No video-source connected to
the selected interface input.
Check settings dips 1 to 3 of video interface which
inputs are activated and switch to corresponding
input(s).
LVDS cables plugged in wrong
place.
Double-check whether order of LVDS cables is exactly
connected according to manual. Plugging into headunit does not work when the manual says to plug into
monitor and vice versa.
Wrong monitor settings of
video-interface.
Try different combinations of dips 7 and 8 of videointerface. Unplug 6pin power after each change.
Inserted picture totally
wrong size or position.
Inserted picture double
or 4 times on monitor.
Inserted picture
distorted, flickering or
running vertically.
Video sources output set to
AUTO or MULTI which causes
a conflict with the interfaces
auto detection.
Set video source output fixed to PAL or NTSC. It is best
to set all video sources to the same standard.
If error occurs only after
source switching: Connected
sources are not set to the
same TV standard.
Set all video sources to the same standard.
Some interfaces can only
Check manual whether there is a limitation to NTSC
mentioned. If yes, set source fixed to NTSC output.
Inserted picture qual.
bad.
Picture settings have not been
adjusted.
Use the 3 buttons and the interface's OSD to adjust the
picture settings for the corresponding video input.
Inserted picture size
slightly wrong.
Inserted picture
position wrong.
Camera input picture
flickers.
Camera is being tested under
fluorescent light which shines
directly into the camera.
Test camera under natural light outside the garage.
Camera input picture is
bluish.
Protection sticker not
removed from camera lens.
Remove protection sticker from lens.

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Camera input picture
black.
Camera power taken directly
from reverse gear lamp.
Use relay or electronics to "clean" reverse gear lamp
power. Alternatively, if CAN-bus box is compatible
with the vehicle, camera power can be taken from
green wire of 6pin to 8pin cable.
Camera input picture
has distortion.
Camera input picture
settings cannot be
adjusted.
Camera input picture settings
can only be adjusted in AV2
mode.
Set dip 3 of video-interface to ON (if not input AV2 is
not already activated) and connect the camera to AV2.
Switch to AV2 and adjust settings. Reconnect camera
to camera input and deactivate AV2 if not used for
other source.
Graphics of a car in
camera input picture.
Function PDC is ON in the
interface OSD.
In compatible vehicles, the graphics will display the
factory PDC distance. If not working or not wanted, set
interface OSD menu item UI-CNTRL to ALLOFF.
Chinese signs in
camera input picture
Function RET or ALL is ON
(function for Asian market) in
the interface OSD.
Set interface OSD menu item UI-CNTRL to ALLOFF or
PDCON.
Not possible to switch
video sources by OEM
button.
CAN-bus interface does not
support this function for
vehicle.
Use external keypad or cut white wire of 6pin to 8pin
cable and apply +12V impulses for AV-switching.
For video source switching a longer press of about 2.5
seconds is required.
Not possible to switch
video sources by
external keypad.
SW-version of interface does
not support external keypad.
Use OEM-button or cut white wire of 6pin to 8pin
cable and apply +12V impulses for AV-switching.
Interface does not
switch to camera input
when reverse gear is
engaged.
CAN-bus interface does not
support this function for the
vehicles.
Cut the green wire of the 6pin to 8pin cable and apply
+12V constant from reverse gear-lamp signal. Use
relay to "clean" R-gear lamp power.
Interface switches
video-sources by itself.
CAN-bus interface
compatibility to vehicle is
limited.
Cut the grey wire of 6pin to 8pin and isolate both
ends. If problem still occurs, additionally cut the white
wire of 6pin to 8pin cable and isolate both ends.
6. Technical Support
Please note that direct technical support is only available for products purchased directly
from NavLinkz GmbH. For products bought from other sources, contact your vendor for
technical support.
NavLinkz GmbH
distribution/tech dealer-support
Heidberghof 2
D-47495 Rheinberg
Tel +49 2843 17595 00
10R-05 0068