Axxess AX-ADGM03 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-ADGM03
INSTALLATION INSTRUCTIONS
AxxessInterfaces.com © COPYRIGHT 2018 METRA ELECTRONICS CORPORATION REV. 7/2/18 INSTAX-ADGM03
INTERFACE FEATURES
INTRODUCTION
TOOLS REQUIRED
• Crimping tool and connectors, or solder gun, solder ,
and heat shrink • Small flat-blade screwdriver
• Tape • Wire cutter • Zip ties
TABLE OF CONTENTS
Connections to be made
For models
without an amplifier ...................3-4
For models with an analog amplifier ............4-5
For models with a digital amplifier ...................6
12-pin pre-wired ASWC-1 harness ......................7
DIN jack ................................................................7
Installing & programming the AX-ADGM03
AX-ADBOX1 ...........................................................8
AX-ADBOX2 ......................................................8-9
Adjusting the AX-ADGM03 ................................... 10
Extra features ................................................... 10-11
GM Data Interface 2000-2013
APPLICATIONS
See inside front cover
• Provides accessory power (12-volt 10-amp)
• Maintains the retained accessory power
(R.A.P.) feature
• Provides NAV outputs (parking brake,
reverse, speed sense)
• Retains chimes
• Retains OnStar / OE Bluetooth
• Adjustable OnStar level
• Retains RSE (rear seat entertainment) *
• Retains satellite radio
• Retains the factory AUX-IN jack
• Pre-wired ASWC-1 harness (ASWC-1 sold
separately)
• Can be used in non-amplified, or analog/
digital amplified models
• Retains balance and fade†
• Micro “B” USB updatable
The AX-ADGM03 harness is designed for, and must be used with, the
AX-ADBOX1 or AX-ADBOX2 interface (sold separately). Please refer to the
AX-ADBOX1 or AX-ADBOX2 for the 16-pin connector with stripped leads.
* Only for models that have the RSE controlled through the factory radio. Not for models that have an external power button at the RSE.
† To retain fade in digital amplified models, use the AX-ADBOX1
INTERFACE COMPONENTS
• AX-ADGM03 harness • 4-pin to 4-pin resistor pad harness

2
APPLICATIONS
BUICK
Century 2004-2005
Lacrosse 2005-2009
Rainier 2005-2007
Rainier* 2004
Regal 2004
Rendezvous 2002-2007
Terraza 2005-2007
CADILLAC
Escalade ** 2003-2006
Escalade ESV ** 2003-2006
Escalade EXT ** 2003-2006
CHEVROLET
Avalanche* 2003-2006
Cavalier 2000-2005
Colorado 2004-2012
Corvette 2005-2013
Express 2003-2007
Impala 2000-2005
Kodiak 2003-2009
Malibu 2001-2003
Malibu Classic 2004-2005
Monte Carlo 2000-2005
Silverado Classic* 2007
CHEVROLET (CONT)
Silverado* 2003-2006
SSR* 2003-2006
Suburban* 2003-2006
Tahoe* 2003-2006
Trailblazer 2005-2009
Trailblazer* 2002-2004
Uplander 2005-2008
GMC
Canyon 2004-2012
Envoy 2005-2009
Envoy* 2002-2004
Savanna 2003-2007
Sierra Classic* 2007
Sierra* 2003-2006
TopKick 2005-2009
Yukon* 2003-2006
HUMMER
H2** 2003-2007
H3/H3T 2006-2010
ISUZU
Ascender 2003-2008
H Series 2003-2008
I Series pickups 2006-2008
OLDSMOBILE
Alero 2001-2004
Bravada* 2002-2004
Intrigue 2002
PONTIAC
Aztec 2001-2005
Grand Am 2001-2005
Grand Prix 2004-2008
Montana SV6 2005-2008
Sunfire 2000-2005
SAAB
9-7X 2005-2009
SATURN
Relay 2005-2007
* These vehicles have a digital amplifier option. Please refer
to the Service Parts Identification sticker located in the
glove box (for all models except for the Buick Regal which
is on the spare tire cover). If the codes UQA or Y91 are
present, then you have a digital amplifier.
** These vehicle come standard with a digital amplifier.

3
REV. 7/2/2018 INSTAX-ADGM03
CONNECTIONS TO BE MADE
Attention! This interface will work with models that are either non-amplified, analog amplified,
or digital amplified. Please follow the instructions carefully for your model vehicle. Failure to
do so will result in either no sound, or low sound. If you are unsure if your vehicle is factory
amplified or not, please contact your local dealership.
For models without an amplifier:
From the 16-pin harness with stripped leads to the aftermarket radio (harness included with interface):
• Connect the Red wire to the accessory wire.
Note: If installing either an ASWC-1 or AX-LCD (both sold separately), connect the (2) Red
wires on the AX-ADGM03 harness as well.
• Connect the Blue/White wire to the amp turn on wire. This wire must be connected for the
audio controls on the steering wheel to function if using an ASWC-1 (sold separately).
• If the aftermarket radio has an illumination wire, connect the Orange/White wire to it.
• If the aftermarket radio has a mute wire, connect the Brown wire to it. If the mute wire is
not connected, the radio will turn off when OnStar is activated.
• Connect the Gray wire to the right front positive speaker output.
• Connect the Gray/Black wire to the right front negative speaker output.
• Connect the White wire to the left front positive speaker output.
• Connect the White/Black wire to the left front negative speaker output.
The following (3) wires are only for multimedia/navigation radios that require these wires.
• Connect the Blue/Pink wire to the VSS/speed sense wire.
Note: There are (2) VSS/speed sense wires. If the Blue/Pink wire on the AX-GM03 harness is
populated on the factory side, use that wire instead.
• Connect the Green/Purple wire to the reverse wire.
• Connect the Light Green wire to the parking brake wire
• Tape off and disregard the following (4) wires, they will not be used in this application:
Green, Green/Black, Purple, Purple/Black
From the AX-ADGM03 harness to the aftermarket radio:
• Connect the Black wire to the ground wire.
• Connect the Yellow wire to the battery wire.
• If installing either an ASWC-1 or AX-LCD (both sold separately), connect the (2) Red wires to
accessory power.
• Cut off the resistors from the Green, Green/Black, Purple, and Purple/Black wires below the
heat shrink.
• Connect the Green wire to the left rear positive speaker output.
• Connect the Green/Black wire to the left rear negative speaker output.
• Connect the Purple wire to the right rear positive speaker output.
• Connect the Purple/Black wire to the right rear negative speaker output.
Continued on the next page

4
CONNECTIONS TO BE MADE (CONT.)
• Ensure the (2) 4-pin Molex connectors are connected together.
Note: The 4-pin to 4-pin resistor pad harness will not be used in this application.
• The Black/Yellow wire is used for OnStar level adjustment for models that do not come
equipped with steering wheel controls. Refer to the OnStar level Adjustment section for
further instructions.
The following (1) wire is only for a multimedia/navigation radio that requires this wire.
• If the Blue/Pink wire is populated on the factory side, connect this wire to the VSS/speed
sense wire.
• Connect the Red and White RCA jacks to the audio AUX-IN jacks from the aftermarket radio.
Continue to 12-pin pre-wired ASWC-1 harness
Attention! This interface will work with models that are either non-amplified, analog amplified,
or digital amplified. Please follow the instructions carefully for your model vehicle. Failure to
do so will result in either no sound, or low sound. If you are unsure if your vehicle is factory
amplified or not, please contact your local dealership.
For models with an analog amplifier:
From the 16-pin harness with stripped leads to the aftermarket radio (harness included with interface):
• Connect the Red wire to the accessory wire.
Note: If installing either an ASWC-1 or AX-LCD (both sold separately), connect the (2) Red
wires on the AX-ADGM03 harness as well.
• Connect the Blue/White wire to the amplifier turn on wire. This wire must be connected to
hear sound from the factory amplifier.
• If the aftermarket radio has an illumination wire, connect the Orange/White wire to it.
• If the aftermarket radio has a mute wire, connect the Brown wire to it. If the mute wire is
not connected, the radio will turn off when OnStar is activated.
• Connect the Gray wire to the right front positive speaker output.
• Connect the Gray/Black wire to the right front negative speaker output.
• Connect the White wire to the left front positive speaker output.
• Connect the White/Black wire to the left front negative speaker output.
Continued on the next page

5
REV. 7/2/2018 INSTAX-ADGM03
CONNECTIONS TO BE MADE (CONT.)
The following (3) wires are only for multimedia/navigation radios that require these wires.
• Connect the Blue/Pink wire to the VSS/speed sense wire.
Note: There are (2) VSS/speed sense wires. If the Blue/Pink wire on the AX-GMCL2-SWC
harness is populated on the factory side, use that wire instead.
• Connect the Green/Purple wire to the reverse wire.
• Connect the Light Green wire to the parking brake wire
• Tape off and disregard the following (4) wires, they will not be used in this application:
Green, Green/Black, Purple, Purple/Black
From the AX-ADGM03 harness to the aftermarket radio:
• Connect the Black wire to the ground wire.
• Connect the Yellow wire to the battery wire.
• If installing either an ASWC-1 or AX-LCD (both sold separately), connect the (2) Red wires to
accessory power.
• Connect the Green wire to the left rear positive speaker output.
• Connect the Green/Black wire to the left rear negative speaker output.
• Connect the Purple wire to the right rear positive speaker output.
• Connect the Purple/Black wire to the right rear negative speaker output.
• Disconnect the (2) 4-pin Molex connectors, then attach the 4-pin to 4-pin resistor pad
harness.
• The Black/Yellow wire is used for OnStar level adjustment for models that do not come
equipped with steering wheel controls. Refer to the OnStar level Adjustment section for
further instructions.
The following (1) wire is only for a multimedia/navigation radio that requires this wire.
• If the Blue/Pink wire is populated on the factory side, connect this wire to the VSS/speed
sense wire.
• Connect the Red and White RCA jacks to the audio AUX-IN jacks from the aftermarket radio.
Continue to 12-pin pre-wired ASWC-1 harness

6
Attention! This interface will work with models that are either non-amplified, analog amplified,
or digital amplified. Please follow the instructions carefully for your model vehicle. Failure to
do so will result in either no sound, or low sound. If you are unsure if your vehicle is factory
amplified or not, please contact your local dealership.
For models with a digital amplifier:
From the 16-pin harness with stripped leads to the aftermarket radio (harness included with interface):
• Connect the Red wire to the accessory wire.
Note: If installing either an ASWC-1 or AX-LCD (both sold separately), connect the (2) Red
wires on the AX-ADGM03 harness as well.
• Connect the Blue/White wire to the amplifier turn on wire. This wire must be connected to
hear sound from the factory amplifier.
• If the aftermarket radio has an illumination wire, connect the Orange/White wire to it.
• If the aftermarket radio has a mute wire, connect the Brown wire to it. If the mute wire is
not connected, the radio will turn off when OnStar is activated.
• Connect the Gray wire to the right front positive speaker output.
• Connect the Gray/Black wire to the right front negative speaker output.
• Connect the White wire to the left front positive speaker output.
• Connect the White/Black wire to the left front negative speaker output.
• Connect the Green wire to the left rear positive speaker output.
• Connect the Green/Black wire to the left rear negative speaker output.
• Connect the Purple wire to the right rear positive speaker output.
• Connect the Purple/Black wire to the right rear negative output.
The following (3) wires are only for multimedia/navigation radios that require these wires.
• Connect the Blue/Pink wire to the VSS/speed sense wire.
Note: There are (2) VSS/speed sense wires. If the Blue/Pink wire on the AX-GMCL2-SWC
harness is populated on the factory side, use that wire instead.
• Connect the Green/Purple wire to the reverse wire.
• Connect the Light Green wire to the parking brake wire
From the AX-ADGM03 harness to the aftermarket radio:
• Connect the Black wire to the ground wire.
• Connect the Yellow wire to the battery wire.
• If installing either an ASWC-1 or AX-LCD (both sold separately), connect the (2) Red wires to
accessory power.
• Ensure the (2) 4-pin Molex connectors are connected together.
Note: The 4-pin to 4-pin resistor pad harness will not be used in this application.
• The Black/Yellow wire is used for OnStar level adjustment for models that do not come equipped
with steering wheel controls. Refer to the OnStar level Adjustment section for further instructions
.
The following (1) wire is only for a multimedia/navigation radio that requires this wire.
• If the Blue/Pink wire is populated on the factory side, connect this wire to the VSS/speed sense wire .
• Tape off and disregard the following (4) wires, they will not be used in this application:
Green, Green/Black, Purple, Purple/Black
• Connect the Red and White RCA jacks to the audio AUX-IN jacks from the aftermarket radio.
Continue to 12-pin pre-wired ASWC-1 harness
CONNECTIONS TO BE MADE

7
REV. 7/2/2018 INSTAX-ADGM03
12-pin pre-wired ASWC-1 harness:
This harness is to be used along with the optional ASWC-1 (sold
separately) to retain steering wheel audio controls. If the ASWC-1 is
not being used, disregard this harness. If the ASWC-1 will be used,
please refer to the ASWC-1 instructions for radio connections and
programming. Disregard the harness that comes with the ASWC-1.
• The following wire(s) must be cut before programming the ASWC-1:
CONNECTIONS TO BE MADE (CONT.)
BUICK
Century Pin-1, Pin-2 2004-2005
LaCrosse Pin-1, Pin-2 2005-2009
Rainer Pin-2, Pin-3, Pin-4 2004-2007
Regal Pin-1, Pin-2 2004
Rendezvous Pin-1 2002-2007
Terraza Pin-1 2005-2007
CADILLAC
Escalade Pin-2, Pin-3, Pin-4 2003-2006
Escalade ESV Pin-2, Pin-3, Pin-4 2003-2006
Escalade EXT Pin-2, Pin-3, Pin-4 2003-2006
CHEVROLET
Avalanche Pin-2, Pin-3, Pin-4 2003-2006
Cavalier Pin-2, Pin-3, Pin-4 2000-2005
Colorado Pin-2, Pin-3, Pin-4 2004-2012
Corvette Pin-1, Pin-4 2007-2011
Corvette Pin-1 2012-2013
Impala Pin-1, Pin-2, Pin-4 2000-2005
Malibu Pin-1, Pin-2, Pin-4 2001-2003
Malibu Classic Pin-1, Pin-2, Pin-4 2004-2005
Monte Carlo Pin-1, Pin-2, Pin-4 2000-2005
Silverado Pin-2, Pin-3, Pin-4 2003-2006
Silverado Classic Pin-2, Pin-3, Pin-4 2007
SSR Pin-2, Pin-3, Pin-4 2003-2006
Suburban Pin-2, Pin-3, Pin-4 2003-2006
Tahoe Pin-2, Pin-3, Pin-4 2003-2006
Trailblazer Pin-2, Pin-3, Pin-4 2002-2009
Uplander Pin-1, Pin-2, Pin-4 2005-2008
GMC
Canyon Pin-2, Pin-3, Pin-4 2004-2012
Envoy Pin-2, Pin-3, Pin-4 2002-2009
GMC (CONT)
Sierra Pin-2, Pin-3, Pin-4 2003-2006
Sierra Classic Pin-2, Pin-3, Pin-4 2007
Yukon / Yukon XL Pin-2, Pin-3, Pin-4 2003-2006
HUMMER
H2 Pin-2, Pin-3, Pin-4 2003-2007
ISUZU
Ascender Pin-2, Pin-3, Pin-4 2003-2008
OLDSMOBILE
Alero Pin-1, Pin-2, Pin-4 2001-2004
Bravada Pin-2, Pin-3, Pin-4 2002-2004
Intrigue Pin-1, Pin-2, Pin-4 2002
PONTIAC
Aztec Pin-1, Pin-2, Pin-4 2001-2005
Grand Am Pin-1, Pin-2, Pin-4 2001-2005
Grand Prix Pin-1, Pin-2, Pin-4 2004-2008
Montana SV6 Pin-1, Pin-2, Pin-4 2005-2006
Sunfire Pin-2, Pin-3, Pin-4 2000-2005
SAAB
9-7x Pin-2, Pin-3, Pin-4 2005-2009
SATURN
Relay Pin-1, Pin-2, Pin-4 2005-2007
(This is the wire view of the connector.)

8
INSTALLING & PROGRAMMING THE
AX-ADGM03
Attention! The AX-ADGM03 will work with both the AX-ADBOX1 and AX-ADBOX2 interfaces,
but programming will be different. Refer to the proper page for whichever interface is being
used. Also note, the programming instructions for the AX-ADBOX2 reflect gen. 2. If installing a
gen. 1 AX-ADBOX2, refer to the AX-ADBOX1 programming instructions. Gen. 2 interfaces can be
distinguished by a blue reset button between the (2) connectors.
AX-ADBOX1
Installing the AX-ADGM03
With the key in the off position:
• Connect the 16-pin harness with stripped leads, and the AX-ADGM03 harness, into the interface .
• Connect the AX-ADGM03 harness to the wiring harness in the vehicle.
• If an ASWC-1 (sold separately) will be used, do not connect it until the AX-ADGM03 is
programmed and fully functional.
Programming the AX-ADGM03
Attention! If the interface ever loses power, the following steps will need to be performed
again. Please ensure that the owner of the vehicle knows this.
•
Turn the key (or push-to-start button) to the ignition position and wait until the radio comes on .
Note: If the radio doesn’t not come on within 60 seconds, turn the key to the off position,
disconnect the interface, check all connections, reconnect the interface, and then try again.
• Turn the key (or push-to-start button) to the off position, then to the accessory position.
Test all functions of the installation for proper operation, before reassembling the dash.
Note: To use fade in digital amplified models, ensure the radio is turned up 3/4 of the way.
Continue to Adjusting the AX-ADGM03
DIN jack:
The DIN jack is to be used with the optional AX-LCD (sold separately) to retain satellite radio information.
The AX-LCD can also be used to view which factory sources are active; AUX-IN, rear seat entertainment,
satellite radio
.
CONNECTIONS TO BE MADE (CONT.)

9
REV. 7/2/2018 INSTAX-ADGM03
INSTALLING & PROGRAMMING THE AX-ADGM03
Attention! The AX-ADGM03 will work with both the AX-ADBOX1 and AX-ADBOX2 interfaces,
but programming will be different. Refer to the proper page for whichever interface is being
used. Also note, the programming instructions for the AX-ADBOX2 reflect gen. 2. If installing a
gen. 1 AX-ADBOX2, refer to the AX-ADBOX1 programming instructions. Gen. 2 interfaces can be
distinguished by a blue reset button between the (2) connectors.
AX-ADBOX2
Installing the AX-ADGM03
With the key in the off position:
• Connect the 16-pin harness with stripped leads, and the AX-ADGM03 harness, into the
interface.
• If an ASWC-1 (sold separately) will be used, do not connect it until the AX-ADGM03 is
programmed and fully functional.
Attention! Do not connect the AX-ADGM03 harness to the wiring harness in the vehicle just yet.
Programming the AX-ADGM03
For the steps below, the L.E.D. located inside the interface can only be seen while active.
The interface does not need to be opened to see the L.E.D.
1. Start the vehicle.
2. Connect the AX-ADGM03 harness to the wiring harness in the vehicle. The L.E.D. will initially
be Green to indicate the interface is powered.
3. After a few seconds the L.E.D. will turn on solid Red while the interface automatically
programs to the vehicle. The radio will shut off at this point. This process should take 5 to 30
seconds.
4. After the interface is programmed, the L.E.D. will turn on solid Green, and the radio will
come back on, indicating programming was successful.
5. Test all functions of the installation for proper operation, before reassembling the dash.
6. If the interface fails to function, refer to “Troubleshooting”, “Resetting the interface”.
Troubleshooting
Resetting the interface
1. The Blue reset button is located inside the interface, between the two connectors. The
button is accessible outside the interface, no need to open the interface.
2. Press and hold the reset button for two seconds, then let go to reset the interface.
3. Refer to “Programming the AX-ADGM03 Interface” from this point.
Continue to Adjusting the AX-ADGM03

10
Audio level adjustment (digital amplified models only):
• With the vehicle and radio turned on, turn the volume up 3/4 of the way.
• With a small flat-blade screwdriver, adjust the potentiometer clockwise to raise the audio
level; counterclockwise to lower the audio level.
• Once at a desired level, audio level adjustment is complete.
Chime level adjustment:
• With the vehicle on, turn it off and leave the keys in ignition. Open the driver’s door; chimes
will be heard.
• Wait 10 seconds, and then with a small flat-blade screwdriver, turn the potentiometer
clockwise to raise the chime level; counterclockwise to lower the chime level.
• When the chime is at a desired level, remove the keys from the ignition. This will lock the
chime volume at its current level.
OnStar level adjustment:
• Press the OnStar button to activate it.
• While OnStar is speaking, press the VOLUME UP or VOLUME DOWN button on the steering
wheel to raise or lower the OnStar level.
• If the vehicle does not come equipped with steering wheel controls, locate the Black/Yellow
wire on the AX-ADGM03 harness.
• While OnStar is speaking, tap the Black/Yellow wire to ground. Once the OnStar level is set, it
will stay at that level until the Black/Yellow wire is tapped to ground again.
ADJUSTING THE AX-ADGM03 EXTRA FEATURES
AUX-IN, RSE and satellite radio:
• If the vehicle is equipped with AUX-IN, rear seat entertainment, or satellite radio,
the AX-ADGM03 can retain these features.
• Change the source of the radio to AUX-IN; satellite radio will start playing.
• The optional AX-LCD (sold separately) will display the satellite radio information.
• Listed below are the functions of the AX-LCD while using satellite radio:
Arrow Up - Channel up
Arrow Down - Channel down
Enter - Selects current item on the screen
Return/ESC - Exits to the previous screen
• To access advanced features of the satellite radio, press and hold the SOURCE button on the
steering wheel for 3 seconds.
Note: If the vehicle is not equipped with steering wheel controls, the AX-LCD will be required
for this feature.
Continued on the next page