RP5-GM31
Radio Replacement & Steering Wheel Control Interface
with OnStar Retention for General Motors Vehicles
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Rev. 022516
Page 1
Introduction & Features
Important Notes
Wiring Connection Chart
Illustration / Schematic
The RP5-GM31 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, steering wheel controls (SWC), warning chimes,
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interface also allows you to program two radio functions to each SWC button by using short press long press dual
command functionality. The RP5-GM31 also provides data bus driven outputs such as retained accessory power (RAP),
vehicle speed sensor (VSS), illumination, reverse trigger and parking brake.
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interface into the vehicle (see next page for setting chart).
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Light Green
Parking Brake
Output (-)
Pink
Vehicle Speed
Output
Blue Not Used
Blue / White $PS7XUQ2Q,QSXW
Orange / White
Illumination Output
(+)
Purple/White Reverse Output (+)
Brown Loop
Mute Loop - See
installation note 8.
Aftermarket Radio Connections
Yellow %DWWHU\Y
Black Ground
Red $FF2XWSXW
White Front L + input
White / Black Front L - input
*UH\ Front R + input
*UH\%ODFN Front R - input
Green Rear L + input
Green / Black Rear L - input
Purple Rear R + input
Purple / Black Rear R - input
SWC Connector
Blue/Yellow
Kenwood, Newer
JVC
3.5mm Jack
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Clarion, Pioneer,
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Dual, Lightning
$XGLR9LVWHRQRU
$GYHQW
SWC Connection
See above chart for
different radio type
connections
Wiring SWC Connection
XM R
XM L
Aftermarket
Radio
Connections
Vehicle
Connections