Adapter Features
Class II Harness
GM LAN 11 Harness
GM LAN 29 Harness
Installation Notes

Adapter Features

All-In-One GM Replacement Interface Solution: The Axxess AX-ADGM100 is an all-in-one solution to add an aftermarket radio to select 2000-up GM vehicles with the CLASS II, GM LAN 11, or GM LAN 29 bit data systems. The AX-ADGM100 can be used in vehicles with or without factory amplifiers, including digital amplified systems. The AX-ADGM100 is able to retain OnStar, Bluetooth, Satellite Radio (factory D.I.C. or optional LCD required), steering wheel controls (requires optional adapter), rear-seat entertainment (GM LAN 29 harness only; depending on type of vehicle), and factory backup camera (GM LAN 29 harness only; depending on type of vehicle). In addition, all the warning chimes and convenience features are retained that are normally lost when the OEM radio is removed. The AX-ADGM100 also provides a 12-volt/10-amp accessory output and connections to help install a navigation radio which include VSS, Parking Brake, and Reverse (rear-view camera). Common features include:

• 12V/10A Accessory Output:  In these vehicles, there is no 12-volt accessory wire in the factory harness, which requires the installer to run an accessory wire to the fuse box or underneath the steering column when installing an aftermarket radio. The AX-ADBOX2 is designed to provide a 12-volt/10-amp switched accessory output (red wire), along with an illumination wire (orange/white wire).
• Amp Turn-On Lead: The AX-ADBOX2 provides an amp turn-on lead (Blue/white) to turn on any factory amps. Both balance & fade control are retained.
• Navigation Ready: The AX-ADGM100 provides a VSS (vehicle speed sense), Parking Brake, Mute, and a Reverse Gear output to make installing an aftermarket Navigation radio simpler and less time consuming.
• OnStar/Bluetooth Compatible: The AX-ADGM100 is designed to retain the factory OnStar emergency services system that would normally be lost when your factory radio is replaced by an aftermarket head unit. This interface module will also retain your GM factory Bluetooth functionality.
• Warning Chimes/Turn Signals: The Axxess AX-ADGM100 retains your vehicle's factory warning chimes and turn-signals.
• Retained Accessory Power (R.A.P.): The ignition power source of most GM vehicles keeps the radio on until one of the doors is opened. This feature is called the R.A.P. (retained accessory power). The AX-ADGM100 is designed to retain this feature.
• Satellite Radio: The Axxess AX-ADGM100 retains the factory Satellite Radio tuner (tuner must be separate from the factory radio). May require separate LCD screen (sold separately).
• Optional Steering Wheel Control Interface (sold separately): The included wiring harness features a right-angle 3.5mm connector that lets you keep your GM vehicle's OEM steering wheel controls via the optional Axxess Steering Wheel Control Interface (120ASWC1, sold separately).

Class II Harness

Class II Harness Compatibility Chart: The included Class II harness is compatible with the following 2000-up Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Saab, and Saturn vehicles (as of 7/30/2013):

Class II Harness Feature Set:

• 10-Amp ACC 12v output
• Retains all factory warning chimes
• Retains OnStar *
• Retains factory amp *
• Retains factory Bluetooth (hands-free phone & wireless audio streaming) *
• Retains factory Satellite Radio (Aftermarket head unit must be equipped with a rear-panel AUX input; separate LCD screen is required to view text)
• Provides Navigation outputs (VSS, Park Brake, Reverse signal)
• Compatible with Axxess ASWC1 Steering Wheel Control Interface (sold separately) *

GM LAN 11 Harness

GM LAN 11 Harness Compatibility Chart: The included GM LAN 11 harness is compatible with the following Chevrolet, Pontiac, and Saturn vehicles (as of 7/30/2013):

GM 11-Bit LAN Harness Feature Set:

• 10-Amp ACC 12v output
• Retains all factory warning chimes
• Retains turn signal indicators via pre-wired relay
• Retains OnStar *
• Retains factory amp *
• Retains factory Bluetooth (hands-free phone & wireless audio streaming)*
• Retains factory Satellite Radio (aftermarket head unit must be equipped with a rear-panel AUX input; separate LCD screen is required to view text)
• Provides Navigation outputs (VSS, Park Brake, Reverse signal)
• Compatible with Axxess ASWC1 Steering Wheel Control Interface (sold separately) *

GM LAN 29 Harness

GM LAN 29 Harness Compatibility Chart: The included GM LAN 29 harness is compatible with the following 2006-up Buick, Cadillac, Chevrolet, GMC, Hummer, Pontiac, Saturn, and Suzuki vehicles (as of 7/30/2013):

GM 29-Bit LAN Harness Feature Set:

• 10-Amp ACC 12v output
• Retains all factory warning chimes
• Retains turn signal indicators via pre-wired relay
• Retains factory backup cam (aftermarket head unit with a rearview camera RCA input required)
• Retains Rear Seat Entertainment (aftermarket head unit must feature a rear-panel AV input)
• Retains OnStar *
• Retains factory amp *
• Retains factory Bluetooth (hands-free phone & wireless audio streaming) *
• Retains factory Satellite Radio (aftermarket head unit must be equipped with a rear-panel AUX input required + factory D.I.C. + factory SWC required; otherwise separate LCD screen must be used to view text)
• Provides Navigation outputs (VSS, Park Brake, Reverse signal)
• Compatible with Axxess ASWC1 Steering Wheel Control Interface (sold separately) *

Installation Notes

Satellite Radio Note: Your factory Satellite Radio information will continue to be displayed through your vehicle's factory Driver Information Center (D.I.C.). This factory D.I.C. is not removed when replacing your factory radio with your new aftermarket head unit. If your vehicle is not equipped with a separate Driver Information Center and the factory radio displays all Satellite Radio information, you will lose Satellite Radio text, unless you purchase the XIA-LCD (120XIALCD, sold separately), which provides a separate LCD screen from your new aftermarket stereo and allows you to navigate through factory installed Satellite Radio options.

16-Pin Harness Color Codes: In addition to the three vehicle specific harnesses, the Axxess AX-ADGM100 includes a 16-pin harness which connects between the interface module and your aftermarket receiver. These connections will need to be crimped or soldered together.

Level Adjustments: The AX-ADGM100 provides chime/turn signal volume adjustment, overall gain level adjustment, and OnStar level adjustment.

• Chime/Turn Signal Volume Adjustment: To adjust the chime volume, use a small screwdriver to rotate the module's potentiometer (located on the 8-pin harness side of the interface; closest to 8-pin harness). Turn clockwise to make the chime/turn signal louder and counterclockwise to make the chime/turn signal softer. Turn signal will not be affected in non-amplified or class II systems.
• Overall Gain Level Adjustment: To adjust the overall audio volume of your vehicle, use a small screwdriver to rotate the potentiometer, located on the 8-pin harness side; furthest away from 8-pin harness). Turn clockwise to make gain louder and counterclockwise to make the gain softer.
• OnStar Level Adjustment: To adjust the OnStar volume level, find the Black/Yellow wire on the 20-pin harness. Push the blue OnStar button, while the voice is speaking tap the Black/Yellow wire to ground. There are 4 volume settings for OnStar; once the 4th setting is reached and the Black/Yellow wire is tapped to ground it will automatically go back to the first volume setting. Once the volume is set, it will stay at that volume until the Black/Yellow wire is tapped to ground again. This can be set during installation and then left alone. If user adjustment is desired, a momentary contact switch (sold separately) can be added. Connect one terminal from the switch to ground and the other terminal to the Black/Yellow wire. The volume will change one level every time the switch is pressed.

RSE/Backup Camera Note: The AX-ADGM100 only retains factory RSE (rear seat entertainment) and backup camera in select vehicle's which require the GM LAN 29 harness, using the included rear-view camera harness and AV harness.