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-GMLAN44-SWC
I N S TA L L AT I O N I N S T R U C T I O N S
AxxessInterfaces.com
© COPYRIGHT 2020 METRA ELECTRONICS CORPORATION
REV. 5/5/20 INSTAX-GMLAN44-SWC
INTERFACE FEATURES
INTERFACE COMPONENTS
TABLE OF CONTENTS
Connections to be made ................................... 3-6
- For models
without
an amplifier .......................3
- For models
with
an analog amplifier ................4
- For models
with
a digital amplifier ...................5
- 3.5mm jack steering wheel control retention ..6
Installing the AX-GMLAN44-SWC ..........................6
Programming the AX-GMLAN44-SWC ..................7
Adjusting the AX-GMLAN44-SWC .........................7
Steering wheel control settings ......................8-10
- L.E.D. feedback ....................................................8
- Changing radio type ...........................................8
- Remapping the steering wheel control buttons ..9
- Dual assignment instructions
(long button press) ............................................ 10
Troubleshooting .................................................... 11
GM
Data Interface with SWC
2012-2016
• Provides accessory power
(12-volt 10-amp)
• Retains R.A.P. (retained
accessory power)
• Provides NAV outputs (parking
brake, reverse, speed sense)
• Retains chimes
• Retains audio controls on the
steering wheel
• Retains OnStar / OE Bluetooth
• Adjustable OnStar level
• Retains the factory AUX-IN jack
• Retains SAT (satellite radio)
• Can be used in non-amplified, or
analog/digital amplified models
• Retains balance and fade
(excluding digital amplified
models)
• Micro “B” USB updatable
• AX-GMLAN44-SWC interface • AX-GMLAN44-SWC harness
• 16-pin harness with stripped leads • 4-pin to 4-pin resistor pad harness
• Female 3.5mm connector with stripped leads
APPLICATIONS
See inside front cover
TOOLS REQUIRED
• Wire cutter • Crimp tool • Solder gun • Tape • Connectors (example: butt-connectors, bell caps, etc.) • Small flat-blade screwdriver
