Radio Replacement Interface with OnStar Retention for
select General Motors Vehicles with 32-Pin Connector
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Page 1
Rev. 051517
OS2-GM32X
Introduction & Features
Important Notes
Wiring Connection Chart
Illustration / Schematic
The OS2-GM32X interface allows the replacement of a factory radio in select General Motors vehicles with Class II radios. Using
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Mute Loop
Interface Connector
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Ground
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Vehicle Connector
Aftermarket Radio
Connections
To Vehicle
Connector
Connect to SWC
Interface. Program
for Version 2.
To optional SWC interface
Acc On
LED
* These wires may not be present in
all vehicle harnesses.
