Axxess AX-AM-AU91 User manual

CAUTION! All accessories, switches, climate
controls panels, and especially air bag indicator
lights must be connected before cycling the
ignition. Also, do not remove the factory radio
with the key in the on position, or while the
vehicle is running.
AX-AM-AU91
INSTALLATION INSTRUCTIONS
AxxessInterfaces.com © COPYRIGHT 2018 METRA ELECTRONICS CORPORATION REV. 4/16/18 INSTAX-AM-AU91
INTERFACE FEATURES
INTERFACE COMPONENTS
TOOLS REQUIRED
• Wire cutter • Crimp tool • Solder gun • Tape
• Connectors (example: butt-connectors, bell
caps, etc.)
TABLE OF CONTENTS
Connections to be made .......................................2
Configuring the AX-AM-AU91 ................................3
Installing the AX-AM-AU91 ....................................4
User guide ..............................................................5
Audi HDMI and Camera Interface 2013-up*
APPLICATIONS
• Provides front and rear camera inputs to the factory display screen
• Provides an HDMI input to the factory display screen *
• Micro “B” USB updatable
* The factory radio must have an AUX input
AUDI
A3 (Typ 8V)* 2013-up A4 (Typ B9)** 2015-up
• AX-AM-AU91 interface
• AX-AM-AU91 harness
• 10-pin harness with RCA jacks
• 6-pin to 4-pin LVDS (video) cable
*Visit AxxessInterfaces.com for up-to-date vehicle specific applications.
* With 5.8” QVGA color display
** With MMI 7” color screen

2
CONNECTIONS TO BE MADE
• If installing a front/rear camera, connect the Black wire labeled “GND”,
to the camera(s) ground wire.
• If installing a backup camera, connect the Red wire labeled “Reverse Camera 12v”,
to the backup camera power wire.
• If installing a front camera, connect the Red wire labeled “Front Camera 12v”,
to the front camera power wire.
• The Red wire labeled “Acc Power Output” is optional if a power source is required
while a camera is active.
• If installing a backup camera, connect the RCA jack labeled “Reverse Camera Video Input”
to the camera.
• If installing a front camera, connect the RCA jack labeled “Front Camera Video Input”
to the camera.
• If adding an HDMI input to the factory display screen, connect an HDMI cable (Axxess part
number AX-HDCABLE, sold separately), to the port on the AX-AM-AU91 labeled “HDMI IN”.
FRONT CAM IN
REAR CAM IN
ACC PWR OUT
REAR CAM PWR
FRONT CAM PWR
CAM GROUND
HDMILVDS OUT LVDS IN AV IN
POWER
IN
(Connections Diagram)

3
REV. 4/16/2018 INSTAX-AM-AU91
Dip switch settings
Remove the access door located on the top of the AX-AM-AU91 interface to access the dip switches.
Dip 1
If the vehicle is equipped with a factory
backup camera: On: Yes Off: No
Dip 3
If the vehicle has an aftermarket
backup camera : On: Yes Off: No
Dips 4 & 5
A3
• Small screen: Dip 4 On - Dip 5 Off
• Large screen: Dip 4 Off - Dip 5 Off
A4
• Small screen: Dip 4 On - Dip 5 Off
• Large screen: Dip 4 Off - Dip 5 On
Dip 2
If the vehicle has an aftermarket front
camera: On: Yes Off: No
CONFIGURING THE AX-AM-AU91

4
INSTALLING THE AX-AM-AU91
• Remove the main connector from the DVD drive located in the glove box, then connect the
male plug from the AX-AM-AU91 harness into the DVD drive. (Connection 1)
• Connect the factory male factory connector into the female plug from the AX-AM-AU91 harness .
• Connect the AX-AM-AU91 harness into the AX-AM-AU91 interface.
• Remove the LVDS (video) cable from the DVD drive, then connect it to the AX-AM-AU91
interface (LVDS OUT). (Connection 2)
• Connect the 6-pin to 4-pin LVDS (video) cable into the radio, and then into the AX-AM-AU91
interface (LVDS IN).
• Connect the 10-pin harness with RCA jacks into the AX-AM-AU91 interface.
1
2
(Connections Diagram)

5
REV. 4/16/2018 INSTAX-AM-AU91
Button Configuration
• The factory “Menu” and “Back” buttons will be used to operate the AX-AM-AU91.
USER GUIDE
HDMI access
• Select AUX-IN as a source from the factory radio.
• Press and hold the “MENU” button for 2 seconds to switch between the factory screen and
the AX-AM-AU91 screen.
• Press the “BACK” button to disable the video-in-motion warning message.
Front camera access
• Ensure dip switch 2 is selected to “ON”.
• Press and hold the “BACK” button for 2 seconds to activate the front camera.
Rear camera access
• The backup camera will automatically activate while the vehicle is in reverse gear.
• Deselecting the reverse gear will activate the front camera, if installed and dip switch 2 is
selected to “ON”.
Note: This camera takes priority over HDMI mode, and front camera mode. But will not deactivate
the front camera. The front camera image will disappear after the vehicle reaches 10 mph.
View Version Number
• Press and hold the “MENU” button for 8 seconds to enter the firmware information screen.

6

7
REV. 4/16/2018 INSTAX-AM-AU91

KNOWLEDGE IS POWER
Enhance your installation and fabrication skills by
enrolling in the most recognized and respected
mobile electronics school in our industry.
Log onto www.installerinstitute.com or call
800-354-6782 for more information and take steps
toward a better tomorrow.
®
Metra recommends MECP
certified technicians
IMPORTANT
If you are having difficulties with the installation of this product,
please call our Tech Support line at 1-800-253-TECH. Before doing
so, look over the instructions a second time, and make sure the
installation was performed exactly as the instructions are stated.
Please have the vehicle apart and ready to perform troubleshooting
steps before calling.
AxxessInterfaces.com © COPYRIGHT 2018 METRA ELECTRONICS CORPORATION REV. 4/16/18 INSTAX-AM-AU91
INSTALLATION INSTRUCTIONS
AX-AM-AU91