Axxess GMOS-13 Installation Instructions

Cadillac sts amplified onstar interface 2005-2011

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INSTALLATION INSTRUCTIONS FOR PART GMOS-13

GMOS-13

INTERFACE COMPONENTS

Cadillac STS ampliﬁed OnStar

interface 2005-2011

APPLICATIONS

TOOLS REQUIRED

See inside front cover

KIT FEATURES

CAUTION: Metra recommends disconnecting the

negative battery terminal before beginning any

installation. All accessories, switches, and especially

air bag indicator lights must be plugged in before

reconnecting the battery or cycling the ignition.

NOTE: Refer to the instructions included with the

aftermarket radio.

™

METRA. The World's best kits.

1-800-221-0932

metraonline.com

Page 1 INSTALLATION INSTRUCTIONS FOR PART GMOS-13 GMOS-13 INTERFACE COMPONENTS Cadillac STS ampliﬁed OnStar interface 2005-2011 APPLICATIONS TOOLS REQUIRED See inside front cover KIT FEATURES CAUTION: Metra recommends disconnecting the negative battery terminal before beginning any installation. All accessories, switches, and especially air bag indicator lights must be plugged in before reconnecting the battery or cycling the ignition.
Page 2 (Note: This interface will also work in vehicles listed below that are not Gray/Black equipped with OnStar) Green CADILLAC Green/Black Purple Purple/Black Connections to be made Blue/White From the 16-pin Axxess harness: Brown Brown Orange/White Light Green Orange/White Blue/Pink White White/Black Green/Purple...
Page 3 GMOS-13 Connections to be made Testing the GMOS-13 From the 18-pin Axxess harness to 16-pin GM harness: Yellow Black Black/Yellow OnStar Level Adjustment From the 16-pin GM harness: Blue Installing the GMOS-13 This can be set during installation and then left alone. If adjustment is desired, the user may also tap “Volume Up”...
Page 4 INSTALLATION INSTRUCTIONS FOR PART GMOS-13 IMPORTANT WARNING Chime Volume Adjustment you should consult a technician who does have this knowledge and understanding. Failure to follow these instructions carefully and to install the interface as described could cause harm to the vehicle or to safety systems on the vehicle.