Page 1
OS-5
Connect to SWC
Interface. Program
for Version 2.
OS-RADPWRAUDIO
XM R
XM L
SWC Interface
Connections
Radio Replacement with OnStar® Retention for General
Motors Vehicles
Introduction & Features
The OS-5 interface allows the replacement of a factory radio in select General Motors vehicles with 29-bit LAN radios.
Using this interface will retain factory features such as OnStar, warning chimes, Rear Seat Controls (RSC), factory XM
Radio and the BOSE amplier when the original radio is removed. The OS-5 also provides data bus driven outputs such
as retained accessory power (RAP), vehicle speed sensor (VSS), illumination, reverse trigger and parking brake.
Important Notes
1. The OS-5 will retain the use of the factory XM receiver. Factory SWC or RSE controls must be present for use of this feature.
2. SWI interface must be used in conjunction for SWC retention.
3. RSC buttons that are identical to the SWC will mimic the SWC function for function.
Wiring Connection Chart
Aftermarket Radio Connections
Yellow Battery +12v
Black Ground
Red Accessory Output
White Front L + input
White / Black Front L - input
Grey Front R + input
Grey / Black Front R - input
Green Rear L + input
Green / Black Rear L - input
Purple Rear R + input
Purple / Black Rear R - input
Illustration / Schematic
Vehicle
Connections
Red / White Parking Brake
Output (-)
Purple / White Vehicle Speed
Output
Blue OnStar® Volume
Adjust
Blue / White Amp Turn On Input
Orange / White Illumination Output
(+)
Green Reverse Output (+)
Brown Loop Mute Loop - See
installation note 7.
Wiring
XM Audio
Connections
Aftermarket
Radio
Connections
Sub, Center Channel
& Rear Camera
Connections
Page 2
OS-5
22
11 1
Level
Switch
blue
SPST N.O. switch (not included)
Connect to radio side 12 volt
constant wire
Blue wire
Wire insertion side view of
OS-5 RADPWRAUDIO
Connector
Connect to SWC
Interface. Program
for Version 2.
Connect to Radio
Specific SWC
Interface
Radio Replacement with
Installation Steps
1. Make all connections as described in the chart on page1.
2. Factory installed ampliers will determine the audio output connection. If the vehicle has a factory installed amplier use the factory
amplier audio location. If a factory installed amplier is not present use the non-amplied factory audio location.
3. If the vehicle is equipped with a Premium BOSE system, connect the subwoofer and center channel RCA inputs to the aftermarket radios.
If the aftermarket radio to be installed does not have a dedicated center channel or sub output do not use this cable. To ensure best sound
performance channel summing is not recommended. Use this cable according to the outputs that are available.
4. If the vehicle is equipped with a reverse camera and the aftermarket radio has a reverse camera input, connect the yellow RCA plug on the
brown connector to the aftermarket radios reverse camera input.
5. If the aftermarket radio is equipped with an auxiliary input and you wish to retain the factory XM tuner, plug the RCA connectors from the
interface into the radios auxiliary input.
6. Plug the CMX chime module in if necessary (If the vehicle chimes when the radio is removed the CMX is not necessary). PLEASE NOTE:
In order to get the best possible sound out of the CMX please mount it in a place free and clear of any obstructions, preferably as close as
possible to the bottom of the dash pointing down toward the oor of the vehicle.
7. The Mute loop (if not cut) will turn the accessory output off when an OnStar® or Bluetooth call is made or received. If the aftermarket radio
has a mute input cut this loop and connect the inner brown wire (next to the blue/white wire) to the mute input.
OnStar®
R e t e n t i o n f o r G e n e r a l
Motors Vehicles
SWC Output Connector
• The OS-5 provides a SWC output connector attached to the
OS5-RADPWRAUDIO harness. For ease of installation, all necessary
connections for a SWI-X, ECL2, JACK, PS or RC have made for you.
• When using this SWC output connector the radio specic SWC
interface must be programmed for version 2 (refer to SWC interface
programming instructions for exact programming sequence).
• The brown loop should remain in tact.
• During steering wheel button assignment programming each button
should be pressed and held for 1 second after the SWC interface LED
goes out with the exception of the Speak button.
• The speak button should be pressed for less than 1 second and
released.
• Pressing the Speak button for longer than 1.5 SEC will activate
OnStar.
OnStar Volume Adjustment for Vehicles w/o SWC
• If SWC buttons are not present a SPST switch (not included) can be
used to control the OnStar® audio level during an OnStar® connection.
• Connect the Blue wire in pin 6 to one side of a SPST normally open
momentary switch.
• The other side of the SPST switch will be connect to 12 volt constant.
• When OnStar® is active pressing the switch will change the audio level
10 steps.
Page 3
XM 16
XM 16
Turns the
Rear Seat
Controls On
or Off
Change between
Factory XM tuner
and Dual Zone
Radio Source
Scrolls through
Presets 1-6
Seek to the
Next
Factory XM
Tuner Station
Seek to the
Previous
Factory XM
Tuner Station
Turns the
Rear Seat
Controls On
or Off
Change between
Factory XM tuner
and Dual Zone
Radio Source
Controls the
Radio as
Programmed
by the SWC
interface (Mapped
to the Arrow
and Bar Button)
Controls the
Radio as
Programmed
by the SWC
interface (Mapped
to the Arrow
Down Button)
Controls the
Radio as
Programmed
by the SWC
interface (Mapped
to the Arrow
Up Button)
Using Rear Seat Audio Controls
Using the Radios Dual Zone Source Using the Factory XM Radio Tuner
Radio Replacement with
OnStar®
OS-5
Retention for General
Motors Vehicles
Radio
• Press the power button to turn the RSE Controls on. When
Radio is displayed on the RSE Controls, the aftermarket
radios rear speaker output will be heard through the
headphone jacks. Putting the aftermarket radio into dual
zone mode should change the output level of the rear
speakers to a xed level. This allows precise user
adjustment from the level knobs on the RSE Controls (refer
to aftermarket radio owners manual for model specic dual
zone operation).
• The seek arrows and PROG button will control the radio
as programmed by the SWC interface. These buttons are
mapped to the SWC buttons as stated above.
• Pressing the SRCE button will toggle between the Factory
XM tuner and the Radio as the RSE source. Pressing the
power button will turn the RSE Controls off as well as turning
the key off. The seek arrows and PROG button will continue
to operate as stated (with the exception of SRCE which has
no function) when the Rear Seat Controls are turned off.
XM
• Press the power button to turn the RSE Controls on. If Radio
is displayed press the SRCE button to select factory XM
tuner mode. When XM followed by the channel number is
displayed factory XM tuner audio will be heard through the
headphone jacks.
• The Seek arrows will control the factory XM radio tuner and
select the desired station.
• The PROG button will scroll through Presets 1-6
• Pressing the SRCE button will toggle between the Factory
XM tuner and Radio as the RSE source. Pressing the power
button or turning the key off will turn off the RSE Controls.
•
The factory XM tuner must remain serviced to take
advantage of this feature.
• In order for the RSE controls to properly work the XM tuner,
the front XM controls must be set to off.
Rear Seat Entertainment (RSE); If equipped
1. Vehicles equipped with an overhead screen only:
In this application the GMRVD must be used in order to feed A/V into the factory screen from an aftermarket head unit (head
unit must support A/V out). With the GMRVD, A/V will be passed from the aftermarket head unit to the rear screen and audio
can be heard through the headphones. The GMRVD will also pass the Auxiliary inputs on the rear of the center console to the
aftermarket head unit.
2. Vehicles equipped with an overhead screen AND headrest monitors:
In this application the headrest monitors will function independently from the overhead monitor. Neither video or audio
can be passed to or from the headrest monitors. The overhead monitor will function exactly as described in #1.
Page 4
OS-5
SRCE
Press & release to
recall a preset.
Press & hold to store
a preset.
Moves back
through the XM
channels
Moves forward
through the XM
channels
Press & hold to
enable XM controls.
Press & release to
disable XM controls
Factory XM Controls
Volume Up
Volume Down
1
4
2
3
Radio Replacement with
Using the Factory XM Tuner With the SWC
• To activate the XM controls press and hold the “Source” button until a chime
is heard. The Driver Information Center (DIC) in the instrument cluster will
display “XM Control On” or display XM text.
• Arrow up moves forward through the channels. The channel name and song
name will be displayed on the DIC.
• Arrow down moves backwards through the channels. The channel name will
be displayed on the DIC.
• To store a preset, rst choose the preset location by pressing the “Play”
button repeatedly. The DIC will display the XM preset locations. When the
desired preset location is displayed, tune to the desired station, then press
and hold the “Play” button until a chime is heard. “Preset Saved” will then
be displayed on the DIC.
• To recall a preset simply press the “Play” button repeatedly until the desired preset is displayed.
• To de-activate the XM controls press and release the “Source” button. Do not hold the Source button to exit XM control.
PLEASE NOTE: You MUST be installing an aftermarket radio that is equipped with an auxiliary input
to be able to retain the factory XM audio. If the vehicle is equipped with steering wheel controls other
than the ones pictured here, you will not be able to control the factory XM tuner as the
required buttons are not present.
OnStar®
R e t e n t i o n f o r G e n e r a l
Motors Vehicles
Testing & Verication
1. Turn the ignition on. The LED on the interface will turn on & the +12v accessory wire will turn on.
2. Turn on the radio & check balance & fade. Note: Premium factory amplied systems will not fade as neither the
aftermarket radio or the RP interface have the ability to control the amplier’s fader.
3. Verify that the factory subwoofer (if present) is playing
4. Verify that all SWC are functioning properly for both the aftermarket radio and OnStar®. To adjust OnStar® volume, press the
OnStar® button on the mirror then use the volume buttons on the SWC to adjust the level. The volume will raise a total of 10
times before returning to the original level.
5. Verify that the factory XM tuner is functioning properly.
6. Pressing the OnStar® button on the rearview mirror will turn off the rear speakers and allow the OnStar® audio to be heard
in the two front speakers. The OnStar® active LED will also turn on. When OnStar® disconnects, the radio will un-mute or
turn back on and the OnStar® LED will turn off. Pressing the Mute/OnStar® button on the steering wheel for 1.5 seconds will
also activate OnStar®.
7. Turn off vehicle & remove key. RAP will be active & keep the radio on for 10 minutes or until the drivers door is opened.
8. The LED & radio will turn off when RAP turns off or the drivers door is opened.
9. Use the 4 position selector switch located on the side of the CMX module to select the best chime output volume for your
specic installation. Setting 1 being loudest and 4 softest.
CMX
chime module
Product Updates (Firmware)
The OS-5 can be updated with new firmware as it becomes available using the PAC-UP interface updater (sold separately).
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