Sirius Satellite Radio SIR-GM1 User manual

Installation Guide
SIR-GM1
GM CLASS-2 BUS COMPATIBLE
SIRIUS SATELLITE RADIO TUNER

2SIR-GM1 Installation Guide
Congratulations on your purchase of the SIR-GM1– the GM
Compatible SIRIUS Satellite Radio Tuner!
Your SIR-GM1 is designed replace the factory XM Satellite tuner in select GM
vehicles. The tuner is also compatible with systems that support Satellite Radio
operation but did not come with a tuner from the factory.
Compatibility
TheSIR-GM1isdesignedtobe
compatiblewithselectheadunits from
2003 ~ 2006 in select vehicles that
operate on the Class-2 Bus. Please
consult the compatibility chart that is
included with this product.
CompatibleHeadunitTypes:
• CDonlyHeadunits*
• CD+Cassette Headunits*
• 6-CDchangerHeadunits*
• TouchScreenMonitorHeadunits
• Non-TouchScreenMonitor
Headunits
*Note that the units must have a
“BAND”buttonto access SIRIUS audio
modes.
Inaddition,theSIR-GM1iscompatible
withmost additional factory audio
accessories that might be included,
such as:
• RearSeatAudioControlCenter
• RearSeatEntertainment(DVD/
Monitor)System
• Headsupdisplay(HUD)
• Steeringwheelcontrols
NotethattheSIR-GM1isnotcompatiblewiththefactorysatellite
radioantennathatmightbeinstalledinthevehicle.Youmustinstalla
SIRIUScompatibleantennasuchastheoneincludedwiththis
product.Inaddition,someaftermarketClass-2busaccessoriesmay
causeperformanceorinterferenceproblemswiththeSIR-GM1.
Features
TheSIR-GM1isdesignedtoemulate
many of the factory SDAR (Satellite
DigitalAudioRadio)commandsfound in
yourvehicle.
• ChannelTune(UpandDown)
• FastTune(UpandDown)
• CategorySearch(UpandDown)
• CategoryTune(Tunewithina
category)
• 12presets(6foreachband)
• PresetScan (UP)
Note about features listed; Each GM
radiotypeoperatesdifferently, so
consultthevehicleowners manual for
properoperationmethods.
Headunit Display Capability
When the SIR-GM1 is installed, it has
the capability to show the following
informationontheheadunitdisplay.
• ChannelNumber
• ChannelName
• CategoryName
• Artist Name**
• SongTitleName**
**Numberofcharacters displayed varies
byheadunit type (8 ~16 Characters).
Text Scrolling and/or Paging is not
supportedwiththeSIR-GM.
Note:SomeGM headunits willdisplay“XM1”or “XM2” asthe
displaysource. Thisinformationis hardcodedin theheadunit
designandcannot bechanged.

3
SIR-GM1 Operation and Installation Guide 3 SIR-GM1 Installation Guide
Table of Contents
Package Contents ..............................................................................................3
Warnings and Cautions .....................................................................................4
Installation ..........................................................................................................6
Mounting the Tuner ............................................................................................6
Installing the Antenna ........................................................................................6
Optimum Antenna Mounting Locations ...........................................................7
Wiring and Cable Connections .........................................................................8
System Connection Examples........................................................................10
ActivatingYour SIRIUS Subscription............................................................... 12
Specifications ................................................................................................... 13
Package Contents
AB
C
E
SIR-GM1 Tuner
Mini Magnetic Antenna
Antenna Cable Cover/Tail
Alcohol Swab
Factory SDAR Interface Cable
T-Harness Interface Cable
Power Harness with Filter
Mounting Screws (Qty. 6)
A
B
C
D
F
E
D
G
G
F
SIR-GM1
GM COMPATIBLE
SIRIUS SATELLITE RADIO TUNER
HEADUNIT
H
H

4SIR-GM1 Installation Guide
WARNING
This symbol means important
instructions. Failure to heed them
can result in serious injury or death.
DO NOT OPERATE ANY FUNCTION
THAT TAKES YOUR ATTENTION
AWAYFROM SAFELY DRIVINGYOUR
VEHICLE.
Any function that requires your
prolonged attention should only be
performed after coming to a complete
stop. Always stop the vehicle in a safe
location before performing these
functions.
Failure to do so may result in an
accident.
DO NOT OPEN, DISASSEMBLE OR
ALTER THE UNIT IN ANY WAY. Doing
so may result in fire, electric shock or
product damage.
DO NOT INSERTANYOBJECTS INTO
THE UNIT. Doing so may result in fire,
electric shock or product damage.
USE THE CORRECT AMPERE
RATING WHEN REPLACING FUSE.
Failure to do so may result in fire,
electric shock or product damage.
MAKETHECORRECTCONNECTIONS.
Failure to make proper connections may
result in fire or product damage.
DO NOT SPLICE INTOAELECTRICAL
CABLES. Never cut away cable
insulation to supply power to other
equipment. Doing so will exceed the
currentcarryingcapacity of the wireand
result in fire or electric shock.
DO NOT INSTALL IN LOCATIONS
THAT MIGHT HINDER VEHICLE
OPERATION. Doing so may obstruct
vision or hamper movement which can
result in a serious accident.
DO NOT INSTALLTHE UNIT TO HIGH
LEVELS OF HUMIDITY, MOISTURE
ORDUST.Doingsocan result inelectric
shock or product failure.
FCC Warning: This equipment may
generateoruseradiofrequencyenergy.
Changes or modifications to this
equipment may cause harmful
interference unless the modifications
are expressly approved in this User
Guide.The user could lose the authority
to operate this equipment if an
unauthorized change or modification is
made.
Note: This equipment has been tested
and found to comply with Part 15 of the
FCC Rules. These rules are designed to
provide reasonable protection against
harmfulinterference.Thisequipmentmay
cause harmful interference to radio
communications if it is not installed and
used in accordance with these
instructions. However, there is no
guarantee that interference will not occur
inaparticularinstallation.Ifthisequipment
does cause harmful interference to radio
or television reception, which can be
determined by turning the equipment off
and on, the user is encouraged to try to
correct the interference by one of more
of the following measures:
• Relocate the receiving antenna.
• Consult the dealer or an
experienced technician for help.

5
SIR-GM1 Operation and Installation Guide 5 SIR-GM1 Installation Guide
CAUTION
This symbol means important
instructions. Failure to heed them
can result in injury or material
property damage.
HALT USE IMMEDIATELY IF A
PROBLEM APPEARS. Failure to do so
may cause personal injury or damage
to the product. Return the unit to your
authorized retailer or nearest service
center for repairing.
INSTALL THE WIRING SO THAT IT IS
NOT CRIMPED OR PINCHED BY
SCREWS OR SHARP METAL EDGES.
Routethecablesawayfrommovingparts
or sharp pointed edges. This will prevent
crimping and damage to the wiring. If the
wiring must pass through a metal hole,
be sure to use a rubber grommet to
prevent the wire’s insulation from being
cut by the metal edge of the hole.
USE THE SPECIFIED ACCESSORY
PARTS AND INSTALL THE PRODUCT
SECURELY. Be sure to use only the
specified accessory parts. Use of non-
specified parts may damage this unit
internally or may not securely install the
unit in place. This may cause parts to
become loose, resulting in hazards or
product failure.
USE CAUTION IF YOU NEED TO
DISCONNECT THE BATTERY
TERMINAL. Please consult the
vehicle’s owner’s manual or a service
technician prior to removing the battery
positive or ground connection, as it may
causedamagetothevehicle’s electrical
system or require reprogramming of the
vehicle’s computer-controlled devices.
Theway the SIR-GM1 is installed and
usedinyourvehicle will vary depending
onseveralfactorsincludingthemake,
modeland year of the vehicle as well
as the factory-installed options. Please
refertothe information belowfor
informationonthe proper methodof
SIR-GM1installation.
Ifyourvehicleispre-wiredforsatellite
radio, then you should install the SIR-
GM1 in the factory satellite radio tuner
location using the existing wiring and
the ‘factory harness adapter’. Please
refertothefactoryservicemanualsfor
appropriateinstallationinstructions.
Ifyourvehicleis not pre-wired for
satellite radio, but it is compatible with
the SIR-GM1, then you must use the
providedT-harness to connecttothe
back of your factory headunit.
COMPATIBILITY

6SIR-GM1 Installation Guide
Installing the Antenna
Theantennaincludesa6-1/2” cable
cover/tail which covers the exposed
antenna cable and keeps it attached
securely to vehicle roof. The tail also
helps position the antenna the proper
distance from the window, sunroof or
rearhatch.
Installation
It is recommended that prior to starting
theinstallation,youthoroughlyread
thismanualandfollowtheguidelines
listedbelow:
Some installations may use the factory
satellite radio tuner location. If you are
using this location, please follow the
factory instructions for installing the
tuner in your vehicle. If you are not
using this location, please read the
followinginstallationguidelines.
Considerthemountinglocation
carefully. You should make sure that
you avoid the following:
• Any location where the tuner is
exposed to moisture.
• Any location where the unit is
exposed to extreme heat.
• Any location that would interfere
with moving parts on the vehicle or
hamper driving.
Mounting the SIR-GM1 Tuner
Be sure that you find a location that is
flat and has clearance above the unit
to prevent any damage as well as
allowfor ventilation.
Do not install the tuner under the carpet
or in a small enclosed area without
properventilation.Doingsocan result
in damage to the tuner or the vehicle.
Use the supplied screws to securely
fasten the unit.
Caution:
If you are attaching the unit directly to
the vehicle’s chassis, be sure that you
check to make sure the area behind the
unitisfreefrommovingparts,fuelor
break lines, wire harnesses or any
other items which may get damaged by
drilling a mounting hole or using the
suppliedscrews.
Antenna
(Bottom)
Adhesive Strips
Cable Cover/Tail
Connect the cable cover/
tail to the antenna cable,
insert the cable through
the grove. Peal off the
adhesive tape
NotethattheSIR-GM1isnot compatiblewiththe factorysatellite
radioantenna thatmightbeinstalledinthevehicle.Youmust
installa SIRIUScompatibleantenna suchastheoneincluded
withthis product.

7
SIR-GM1 Operation and Installation Guide 7 SIR-GM1 Installation Guide
To attach the cover/tail:
1) Onceyouhavedeterminedtheproper
mountinglocation(seenextsection),
cleanthe areawiththe supplied
alcoholswab.
2) Connectthecover/tailtotheantenna
cable, making sure that the strain-
reliefseatsintothecover/tailgroove.
Routethecablethroughthewire
channelinthecover/tail.
3) Removetheremainingprotectivetape
fromtheadhesive,carefullyposition
theantennawithcover/tailandapply
pressuretosecure to thevehicle.
Sedan/Coupe
SUV/Mini-Van
Truck
Convertible (only)
• ForSUVs,minivansandfive-door
vehicles,bringthecable into the
vehicleundertherubbermoldingfor
thetailgate,andcontinueunderthe
interiortrim.
• From the trunk, carefully route the
cable to the location of the
SIR-GM1andplugtheSMB
connector onto the unit.
Caution:
• Do not pull the wire across sharp
edges that could damage it.
• Keep the wire away from areas
whereit couldbecometangled inthe
driver’sandpassenger’sfeet.
• Keeptheantennawireawayfrom
extreme heat – like exhaust systems.
• Avoid placing the cable near any
movingparts
Optimum Antenna Mounting Locations
The optimum location to mount the
antenna is on the roof of the vehicle. It
is important to avoid any obstruction
that will block satellite signal – like a
roofrack.Forconvertiblevehicles,install
the antenna on the trunk lid.
• Place the antenna on a metal
surface of your vehicle at least 12" x
12", and at least 6" from a window.
(Usetheantennacover/tailasa
guidefortheproperdistance).
• Theantenna’spowerfulmagnetwill
secure it to the metal surface. The
adhesive that is attached to the
antennacover/tailwillsecurethe
cabletothevehicle. Beforerouting
theantennacable,confirmthatthe
antennais mountedina good
location.
• Route the cable from the antenna to
the vehicle’s interior by tucking it
underneaththerubbermoldingaround
therearwindow(ifpossible).
• Routethecablefromthelowestpoint
oftherearwindowintothetrunk.Take
advantageofanyexistingcable
channelsorwiringconduits.

8SIR-GM1 Installation Guide
Wiring and Cable Connections
A
B
A. Antenna Input
Connecttheright-angleSMBconnector
from the antenna. Push firmly to
attach.Connecttoonlyapproved
SIRIUSSatelliteRadioantennas-DO
NOT connect to the factory satellite
radioantennaifinstalled.
B. Headunit Connector
Connection to either the Factory SDAR
interfacecableor T-Harness cable
depending on system type.
SIR-GM1
GM COMPATIBLE
SIRIUS SATELLITE RADIO TUNER
HEADUNIT
Factory SDAR Interface Cable
Use this cable if you are replacing the
factoryXMsatellite tuner.
T-Harness Interface
Ifyourvehicledoesnot have a factory
XM satellite tuner installed, use theT-
Harnessandsupplied power harness
with noise filter..
Note 1:
DO NOT cut or extend the supplied
harnesses. Doing so can cause
operation or noise issues.
Note 2:
It is not possible to have both the
factoryXMtunerand the SIR-GM1
installed at the same time.

9
SIR-GM1 Operation and Installation Guide 9 SIR-GM1 Installation Guide
FILTER &
FUSE BOX
OUT
IN
Antenna (21’ cable) - Mount on
Roof of Vehicle
Right-angle SMB
Connector
NOTE: If your vehicle is equipped with a factory satellite radio tuner and you are using the
included ‘T-harness interface cable’for installation, you must disconnect the factory satellite
radio tuner at the tuner box. Otherwise, operational errors will occur while using the SIR-GM1.
Factory GM Class-2 Radio
Connect YELLOW wire to the Battery
Positive or other good B+ source
Factory bus connector
(Vehicle Side)
Connect Black wire to a
solid Chassis Ground
(as short as possible)
SIR-GM1
Connector
T-Harness
Interface Cable
Power Harness
with Filter
Factory bus connector
(Headunit Side)
1-AMP Fuse located
inside noise filter
1-AMP ATC Fuse

10 SIR-GM1 Installation Guide
System Connection Examples
System 1
Forvehiclespre-wiredfor satellite radio
Factory SDAR
Interface Cable
Factory wiring
harness
Remove the Factory XM Tuner and
connect the SDAR Interface Cable
NOTE:Ifinstalling into aCadillacCTS, a slight modificationofthe Factory SDARInterfaceCable
is required. Please see the attached technical sheet for details.
DO NOT cut or extend the supplied
harness. Doing so can cause operation
or noise issues.

11
SIR-GM1 Operation and Installation Guide 11 SIR-GM1 Installation Guide
FILTER &
FUSE BOX
OUT
IN
System 2
Forvehiclesnotwiredforsatelliteradio
Connect YELLOW wire to the Battery
Positive or other good B+ source
Factory bus connector
(removed from headunit)
Connect Black wire to a solid Chassis
Ground (as short as possible)
Factory bus connector
SIR-GM1
Connector
T-Harness
Interface Cable
Power Harness
with Filter
○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○
DO NOT cut or extend the supplied
harness. Doing so can cause operation
or noise issues.

12 SIR-GM1 Installation Guide
YoumustactivateSIR-GM1before you
can start to receive the SIRIUS Satellite
Radiobroadcast.
1. Make sure that the SIR-GM1 is
properlyconnected andthatits
antennaisorientedtoreceivethe
SIRIUSsatellitesignal.
2. Turnontheheadunit.
3. Use your factory radio’s controls to
select satellite radio as the source.
PressingtheBAND buttonwillchange
sources to SR1 or SR2. Note- some
headunitswilldisplayXM1orXM2
wheninSIRIUSmode.
4. If this is the first time the unit is
connectedandreceivingsatellite
signal, the display may read
“UPDATING”untiltheSIR-GM1
channelupdateiscompleted.Thisis
where the latest channel line up is
updatedontheSIRIUSReceiver.
NOTE: Don’t push any buttons or
perform any operations until
updating has been completed.
Once updated and the SIRIUS
channelsarereceived,youwillbe
tunedtoSIRIUSSatelliteRadio’s
PreviewChannel(Channel184).You
shouldbeabletoheartheSIRIUS
Previewchannel’sAudio.
5. FindtheSIRIUSID(SID)ofyourunit.
TheSIDcanbe found onastickeron
thebottomof theSIR-GM1or by
tuning to channel 255. Press the
display button (DISP on most units-
some use INFO) to select either artist
name or song title. Both fields will
displaythe12-digitSID.
6. Write down the 12 digit SID in the
locationprovidedonthenextpagefor
futurereference.
7. ContactSIRIUSonthe Internet:
https://activate.siriusradio.com
Followthepromptstoactivateyour
subscription.
You can also call SIRIUS toll-free at 1-
888-539-SIRIUS(1-888-539-7474)to
activateyourtuner.
Note: You will not be able to tune to
any other channels until you activate
yourSIRIUSsubscription.
Activating Your SIRIUS Subscription
Basic Operation
After the unit is activated please follow
the steps below to insure proper
operationoftheunit:
1. Power off the headunit, close all doors
for1minute.
2. Open the door and either start the car
orturnontheACC.
3. Cycle through the BANDS to select
SR1(orXM1).
4. Select each preset one time (the
headunitmayhaveretainedpresets
fromtheXMradio.Thiswillchangeall
thepresetstotheSIRIUSdefault
channels.
5. Press BAND to select SR2 (or XM2)
andrepeatstep4above.
6. You can now tune and set up your
presets as you wish.
Forspecificheadunitfunctions,please
consultyourGMheadunitowner’s
manualforproperoperation instructions
forusing satellite radio products.
Note:When reactivatinga“deactivated”receiver,theheadunit MAY
showthe UPDATINGmessagecontinuously.ChanneltuneUPor
Downto clearthemessage.

13
SIR-GM1 Operation and Installation Guide 13 SIR-GM1 Installation Guide
SIRIUS ID:
SIRIUS Customer Service: 1-888-539-7474
Specifications
Operational Frequencies
Satellite ......................................................................... 2322.293/2330.207 MHz
Terrestrial....................................................................................... 2326.250MHz
Power Requirements .................................................................. 11-16 Volts DC
Chassis Size ............................. 126.75mm x 125.75mm x 34.75mm (WxHxD)
Antenna Type................................................................................Mini-Magnetic
Antenna Cable Length ................................................. 21’ (single micro-cable)
Connector Type .....................................................................SMB (Right-angle)
Audio Output ............................................................................. 1.4V rms (Fixed)
Included Cables........................................................ T-Harness Interface Cable
............................................................................ Factory SDAR Interface Cable
.............................................................. Power harness with in-line noise filter
Please write down your SIRIUS ID in the space provided below:
Designandspecifications subjecttochange withoutnotice.

SIRIUS Satellite Radio
1221 Avenue of the Americas
New York, NY 10020
[phone]
www.sirius.com
SIR-GM1-Install-Manual-(v05162006)
© 2006 SIRIUS Satellite Radio Inc.
“SIRIUS” and the SIRIUS dog logo are trademarks of Sirius Satellite Radio Inc.