Axxess GMOS-13 User manual

INSTALLATION INSTRUCTIONS FOR PART GMOS-13
METRA. The World’s best kits.™metraonline.com1-800-221-0932 © COPYRIGHT 2004-2011 METRA ELECTRONICS CORPORATION
REV. 11/15/2013 INSTGMOS-13
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.
t 1SPWJEFTBDDFTTPSZWPMUBNQ
t 3FUBJOT3"13FUBJOFE"DDFTTPSZ1PXFS
t 6TFEJOBNQMJGJFETZTUFNT
t 3FUBJOTDIJNFT
t 1SPWJEFT/"7PVUQVUTQBSLJOHCSBLFSFWFSTFNVUFBOE744
t 1SFXJSFE"48$IBSOFTTJODMVEFE"48$TPMETFQBSBUFMZ
t 3FUBJOT0O4UBS0&#MVFUPPUI
t "EKVTUBCMFWPMVNFGPSDIJNFTBOE0O4UBS
t )JHIMFWFMTQFBLFSJOQVU
t 64#VQEBUBCMF
t 3FUBJOTCBMBODFBOEGBEF
KIT FEATURES
t$VUUJOHUPPMt$SJNQJOHUPPMt5BQFt$POOFDUPST
FYBNQMFCVUUDPOOFDUPSTCFMMDBQTFUD
TOOLS REQUIRED
Cadillac STS amplified OnStar
interface 2005-2011
GMOS-13
APPLICATIONS
See inside front cover
t(.04JOUFSGBDFtQJO"YYFTTIBSOFTT
XJUITUSJQQFEMFBETtQJO"YYFTTIBSOFTTUP
QJO(.IBSOFTTXJUITUSJQQFEMFBETtQJO
(.IBSOFTTXJUITUSJQQFEMFBE
INTERFACE COMPONENTS

GMOS-13
2
Applications
(Note: This interface will also work in vehicles listed below that are not
equipped with OnStar)
CADILLAC
454 
t $POOFDUUIFGray/BlackXJSFUPUIFSJHIUGSPOUOFHBUJWFTQFBLFSPVUQVUPGUIF
BGUFSNBSLFUSBEJP
t $POOFDUUIFGreenXJSFUPUIFSBEJPTMFGUSFBSQPTJUJWFTQFBLFSPVUQVU
t $POOFDUUIFGreen/BlackXJSFUPUIFSBEJPTMFGUSFBSOFHBUJWFTQFBLFSPVUQVU
t $POOFDUUIFPurpleXJSFUPUIFSBEJPTSJHIUSFBSQPTJUJWFTQFBLFSPVUQVU
t $POOFDUUIFPurple/BlackXJSFUPUIFSBEJPTSJHIUSFBSOFHBUJWF 
TQFBLFSPVUQVU
t $POOFDUUIFBlue/WhiteXJSFUPUIFSBEJPTBNQUVSOPOXJSFUIJTXJSFNVTUCF
DPOOFDUFEUPIFBSTPVOEGSPNUIFGBDUPSZBNQMJGJFS
t $POOFDUUIFBrownXJSFUPUIFNVUFXJSFPGUIFBGUFSNBSLFUSBEJP*GUIF
BGUFSNBSLFUSBEJPEPFTOPUIBWFB.VUFXJSFUBQFVQUIFBrownXJSFOPUFJG
UIFNVUFXJSFJTOPUDPOOFDUFEUIFSBEJPXJMMUVSOPGGXIFO0O4UBSJTBDUJWF
t $POOFDUUIFLight GreenXJSFUPUIFQBSLJOHCSBLFXJSFPGUIFBGUFSNBSLFU
OBWJHBUJPOSBEJPJGBQQMJDBCMF
t $POOFDUUIFBlue/PinkXJSFUPUIF744PSTQFFETFOTFXJSFPGUIFBGUFSNBSLFU
OBWJHBUJPOSBEJPJGBQQMJDBCMF
t $POOFDUUIFGreen/PurpleXJSFUPUIFSFWFSTFXJSFPGUIFBGUFSNBSLFU
OBWJHBUJPOSBEJPJGBQQMJDBCMF
t 1MVHUIFQJO"YYFTTIBSOFTTJOUPUIF(.04
Connections to be made
From the 16-pin Axxess harness:
t $POOFDUUIFRedXJSFTUPUIFJHOJUJPOXJSFPGUIFBGUFSNBSLFUSBEJP
t $POOFDUUIFOrange/WhiteXJSFUPUIFJMMVNJOBUJPOXJSFPGUIFBGUFSNBSLFU
SBEJP*GUIFBGUFSNBSLFUSBEJPIBTOPJMMVNJOBUJPOXJSFKVTUUBQFPGGUIF
Orange/WhiteXJSF
t $POOFDUUIFWhiteXJSFUPUIFMFGUGSPOUQPTJUJWFTQFBLFSPVUQVUPGUIF
BGUFSNBSLFUSBEJP
t $POOFDUUIFWhite/BlackXJSFUPUIFMFGUGSPOUOFHBUJWFTQFBLFSPVUQVUPGUIF
BGUFSNBSLFUSBEJP
t $POOFDUUIFGrayXJSFUPUIFSJHIUGSPOUQPTJUJWFTQFBLFSPVUQVUPGUIF
BGUFSNBSLFUSBEJP
Connections to be made

GMOS-13
3
Connections to be made
From the 18-pin Axxess harness to 16-pin GM harness:
t $POOFDUUIFYellowXJSFUPUIFSBEJPTWPMUCBUUFSZPSNFNPSZXJSF
t $POOFDUUIFBlackXJSFUPUIFSBEJPTHSPVOEXJSF
t 1MVHUIFQJO"YYFTTIBSOFTTJOUPUIF(.04
t 5IFBlack/YellowXJSFJTGPSUIF0O4UBSWPMVNFBEKVTUNFOU5IJTXJMMCF
EJTDVTTFEJOUIF0O4UBS-FWFM"EKVTUNFOUTFDUJPOPGUIJTJOTUSVDUJPO
From the 16-pin GM harness:
t $POOFDUUIFBlueXJSFUPUIFBGUFSNBSLFUSBEJPTBOUFOOBUVSOPOXJSF
5IFQJOIBSOFTT"48$QMVHXJMMCFEJTDVTTFEMBUFSJOUIFNBOVBM
t 8JUIBMMDPOOFDUJPOTDPNQMFUFEUPUIFBGUFSNBSLFUSBEJPQMVHUIFQJO
IBSOFTTFTJOUPUIFWFIJDMFXJSJOHIBSOFTTFT
t 3FDPOOFDUUIFOFHBUJWFCBUUFSZUFSNJOBM
t $ZDMFUIFLFZCZUVSOJOHUIFJHOJUJPOPOGPSTFDPOET5IFOPGGBOEPOBHBJO
UPUFTUUIFSBEJP
Installing the GMOS-13
t 5VSOUIFJHOJUJPOiPOw5IFOUVSOUIFBGUFSNBSLFUSBEJPiPOw
t 1SFTTUIF0O4UBSCVUUPOUIFSBEJPTIPVMEUVSOiPGGwSBEJPXJMMNVUFJGNVUFXJSF
JTDPOOFDUFEBOEZPVTIPVMEIFBS0O4UBS
t 1VTIUIF0O4UBSDBODFMCVUUPOBOEUIFSBEJPTIPVMEDPNFCBDLiPOw
Testing the GMOS-13
t 5PBEKVTUUIF0O4UBSWPMVNFMFWFMGJOEUIF#MBDL:FMMPXXJSFPOUIF 
QJO"YYFTTIBSOFTT
t 1VTIUIFCMVF0O4UBSCVUUPOXIJMFUIFWPJDFJTTQFBLJOHUBQUIF#MBDL:FMMPX
XJSFUPHSPVOE
t 0ODFUIFWPMVNFJTTFUJUXJMMTUBZBUUIBUWPMVNFVOUJMUIF#MBDL:FMMPXXJSFJT
UBQQFEUPUIFHSPVOEBHBJO
This can be set during installation and then left alone. If adjustment is
desired, the user may also tap “Volume Up” or “Down” on the steering wheel
(if equipped) to adjust the OnStar level.
OnStar Level Adjustment

INSTALLATION INSTRUCTIONS FOR PART GMOS-13
METRA. The World’s best kits.™metraonline.com1-800-221-0932 © COPYRIGHT 2004-2011 METRA ELECTRONICS CORPORATION
REV. 11/15/2013 INSTGMOS-13
KNOWLEDGE IS POWER
Enhance your installation and fabrication skills by
enrolling in the most recognized and respected
mobile electronics school in our industry.
Log onto www.installerinstitute.com or call
800-354-6782 for more information and take steps
toward a better tomorrow.
Metra recommends MECP
certified technicians
IMPORTANT WARNING
5IJTQSPEVDUJODMVEFTJOTUSVDUJPOTGPSJOTUBMMBUJPO
XIJDINVTUCFDBSFGVMMZGPMMPXFE5IFJOTUSVDUJPOTBSF
XPSEFEJOTVDIBNBOOFSUPBTTVNFUIBUUIFJOTUBMMFS
JTDBQBCMFPGDPNQMFUJOHUIFTFUZQFPGFMFDUSPOJD
JOTUBMMBUJPOT*GZPVBSFVODMFBSBTUPXIBUZPVBSF
JOTUSVDUFEUPEPPSCFMJFWFUIBUZPVEPOPUVOEFSTUBOE
UIFJOTUSVDUJPOTTPBTUPQSPQFSMZBOETBGFMZDPNQMFUF
UIFJOTUBMMBUJPO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. Interference with certain safety systems
could cause harm to persons as well. If you have
any questions in this regard please call the Help
line or Metra at 1-800-221-0932 for assistance.
 8JUIDBSPOTIVUPGGDBSBOEMFBWFLFZTJOJHOJUJPO0QFOUIFDBSEPPSBOEMFBWFJUPQFO$IJNFT
XJMMCFIFBSE
 8BJUTFDPOETUIFOXJUIBTNBMMTDSFXESJWFSBEKVTUUIFQPUFOUJPNFUFSGVMMZDPVOUFSDMPDLXJTFBMM
UIFXBZMFGUUIFODMPDLXJTFUPSBJTFDIJNFMFWFMBOEDPVOUFSDMPDLXJTFUPMPXFSUIFDIJNFMFWFM
 8IFOUIFWPMVNFJTBUUIFEFTJSFEMFWFMSFNPWFUIFLFZTGSPNUIFJHOJUJPO5IJTXJMMMPDLUIFDIJNF
WPMVNFBUJUTDVSSFOUMFWFM
Chime Volume Adjustment
 4UBSUZPVSWFIJDMFBOEUVSOPOUIFSBEJPIBWJOHBVEJPQMBZJOH
 5VSOZPVSBGUFSNBSLFUSBEJPTWPMVNFVQ£PGUIFXBZ
 8JUIBTNBMMTDSFXESJWFSBEKVTUUIFQPUFOUJPNFUFSDMPDLXJTFUPSBJTFUIFBVEJPMFWFMBOE
DPVOUFSDMPDLXJTFUPMPXFSUIFBVEJPMFWFM
 0ODFBUEFTJSFEMFWFMZPVSBVEJPBEKVTUNFOUJTDPNQMFUF
Audio Volume Adjustment