Metra Electronics GMOS-06 User manual

INSTALLATION INSTRUCTIONS FOR PART GMOS-06
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.
• Providesaccessory(12volt10amp)
• RetainsR.A.P.(retainedaccessorypower)
• Usedinamplifiedsystems
• Retainschimes
• ProvidesNAVoutputs(parkingbrake,reverse,mute,V.S.S.)
• RetainsOnStar/OEBluetooth
• AdjustablevolumeforchimesandOnStar
• Highlevelspeakerinput
• USBupdatable
• Retainsbalanceandfade
KIT FEATURES
•Cuttingtool•Crimpingtool•Tape•Connectors
(example:butt-connectors,bellcaps,etc.)
TOOLS REQUIRED
Cadillac Amplified OnStar Interface
1996-2005
GMOS-06
APPLICATIONS
See inside front cover
•GMOS-06interface•16-pinharnesswith
strippedleads•14-pinharnessto32-pinGM
harnesswithstrippedleads
INTERFACE COMPONENTS

GMOS-06
Applications
(Note: This interface will also work in vehicles listed below
that are not equipped with Onstar)
From the 16-pin harness:
• ConnecttheRedwirestotheignitionwireoftheaftermarketradio.
• ConnecttheOrange/Whitewireisnotusedinthisapplication.
• ConnecttheWhitewiretotheleftfrontpositivespeakeroutputofthe
aftermarketradio.
• ConnecttheWhite/Blackwiretotheleftfrontnegativespeakeroutputofthe
aftermarketradio.
• ConnecttheGraywiretotherightfrontpositivespeakeroutputofthe
aftermarketradio.
• ConnecttheGray/Blackwiretotherightfrontnegativespeakeroutputofthe
aftermarketradio.
• ConnecttheGreenwiretotheradio’sleftrearpositivespeakeroutput.
• ConnecttheGreen/Blackwiretotheradio’sleftrearnegativespeakeroutput.
• ConnectthePurplewiretotheradio’srightrearpositivespeakeroutput.
• ConnectthePurple/Blackwiretotheradio’srightrear
negativespeakeroutput.
• ConnecttheBlue/Whitewiretotheradio’sampturnonwire.
Connections to be made
CADILLAC
Deville 1996-2005
Eldorado 1996-2002
Seville 1996-2004
Catera 1997-2001

GMOS-06
Connections to be made
• ConnecttheBrownwiretothemutewireoftheaftermarketradio.Ifthe
aftermarketradiodoesnothaveaMutewire,tapeuptheBrownwire.
• ConnecttheLight Greenwiretotheparkingbrakewireoftheaftermarket
navigationradio.
• ConnecttheBlue/PinkwiretotheVSSorspeedsensewireoftheaftermarket
navigationradio.
• ConnecttheGreen/Purplewiretothereversewireoftheaftermarket
navigationradio.
• Plugthe16-pinharnessintotheGMOS-06.
From the 32-pin GM harness:
• ConnecttheYellowwiretotheradio’s12voltbatteryormemorywire.
• ConnecttheBlackwiretotheradio’sgroundwire.
• ConnecttheBluewiretotheradio’santennaturnwire.
• ConnecttheOrange/Whitewiretotheilluminationwireoftheaftermarket
radio.Iftheaftermarketradiohasnoilluminationwire,tapeofftheOrange/
Whitewire.
• Withallconnectionscompletedtotheaftermarketradio,plugthe32-pin
harnessesintothevehicleswiringharnesses.
• Reconnectthenegativebatteryterminal.
• Cyclethekey,byturningtheignitiononfor30seconds.Thenoffandonagain
totesttheradio.
Installing the GMOS-06
• TheBlack/Whitewiresaretobegroundedonlyifenginenoiseispresent,
otherwiseinsulatetheunusedwires.
• Plugthe14-pinharnessintotheGMOS-06.
• TheBlack/YellowwireisfortheOnStarvolumeadjustment.Thiswillbe
discussedintheOnStarLevelAdjustmentsectionofthisinstruction.
The12-pinharness(ASWCplug)willbediscussedlaterinthemanual.

GMOS-06
1) Turntheignitiononifnotalready,andthenturntheradioontoverifythatthe
radioworks.Checkbalanceandfadercontrolsforproperoperation.
2) PushtheOnstarbutton(ifequipped)toverifyOnstarisworking.Theradio
willshutofformute,dependingiftheBrownwireonthe16-pinharnessis
connected,andOnstarwillbeheardthroughthefrontspeakers.TurnoffOnstar
andtheradiowillturnbackon.
Chime Volume Adjustment
Please refer to your owner’s manual to adjust the chime level.
Audio Level Adjustment
(Potentiometer located on 16-pin side of
the interface)
1) Startyourvehicleandturnonthe
radiohavingaudioplaying.
2) Turnyouraftermarketradio’svolume
up¾oftheway.
Testing the GMOS-06
3) Withasmallscrewdriveradjustthepotentiometerclockwisetoraisetheaudio
levelandcounterclockwisetolowertheaudiolevel.
4) Onceatdesiredlevelyouraudioadjustmentiscomplete.
OnStar Level Adjustment
ToadjusttheOnStarvolumelevelfindtheBlack/Yellowwireonthe16-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,thecustomermayalsotapvolumeupordownonthe
steeringwheel(ifequipped)toadjusttheOnStarlevel.
Potentiometer
AXXESS ACCESSORIES STEREOS