INTERFACE COMPONENTS
• GMOS-MOST-01 interface
• GMOST-MOST-01 harness
• 16-pin harness with stripped leads
APPLICATIONS
CHEVROLET
Colorado
2015-2018
Suburban
Silverado 1500
2014-2018
Tahoe
Silverado 2500/3500
2015-2018
AxxessInterfaces.com
All manuals and user guides at all-guides.com
GM MOST
*Visit AxxessInterfaces.com for up-to-date vehicle specific applications.
INTERFACE FEATURES
• Provides accessory power
(12-volt 10-amp)
• Maintains the retained
accessory power (R.A.P.) feature
• Retains OnStar / OE Bluetooth
• Retains warning chimes
• Provides NAV outputs (parking
brake, reverse, speed sense)
• Backup camera harness
• 10-pin jumper harness
• 12-pin jumper harness
GMC
2015-up
Canyon
2015-up
Sierra 1500
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Amplifier Interface
2014-up*
®
• Prewired ASWC-1 harness
(ASWC-1 sold separately)
• Retains the factory AUX-IN jack
• Retains the factory backup
camera
• Used in MOST® amplified
applications
• Retains balance
• Micro B USB updatable
2015-2018
Sierra 2500/3500
2014-2018
Yukon / Yukon XL
GMOS-MOST-01
I N S TA L L AT I O N I N S T R U C T I O N S
TABLE OF CONTENTS
Connections .........................................................2-3
Installation .............................................................4
Programming .........................................................4
TOOLS REQUIRED
• Crimping tool and connectors, or solder gun,
solder, and heat shrink
• Small flat blade screwdriver • Tape
• Wire cutter • Zip ties • T-15 Torx screwdriver
Attention!
Let the vehicle sit with the key
out of the ignition for a few minutes before
removing the factory radio. When testing the
2015-2018
aftermarket equipment, ensure that all factory
2015-up
equipment is connected before cycling the
key to ignition.
REV. 9/28/18 INSTGMOS-MOST-01