RP4-GM41
Radio Replacement & Steering Wheel Control Interface
for General Motors Vehicles
Rev. 012115
Pacific Accessory Corporation
Introduction & Features
Important Notes
Wiring Connection Chart
Illustration / Schematic
The RP4-GM41 interface allows the replacement of a factory radio in select General Motors vehicles with 29-bit LAN
v2 44-pin connector radios. Using this interface will retain factory features such as steering wheel controls (SWC) &
Warning Chimes when the original radio is removed. Use of this interface also allows you to program two radio functions
to each SWC button by using short press long press dual command functionality. The RP4-GM41 also provides data bus
driven outputs such as retained accessory power (RAP), vehicle speed sensor (VSS), illumination, reverse trigger and
parking brake.
1. Once the radio has been removed, the vehicle settings which are normally selected through the factory radio can be accessed by downloading
and installing the PAC Vehicle Settings program. Please make your vehicle settings selections before removing the factory radio for
optimal installation time.
2. The radio select rotary switch on the side of the interface must be adjusted to the proper radio setting before plugging the interface into the
vehicle (see below for setting chart).
3. The interface comes pre-programmed for all of the vehicles factory SWC functions and does not require programming unless you wish to
re-assign the SWC functions or utilize short press long press dual command functionality. The SWC can always be restored to default settings
by pressing and releasing the program button on the side of the interface once and waiting 7 seconds for the LED to ash 4 times.
4. The LED will ash whenever a SWC button is pressed.
5. BAADIN22 antenna adapter sold separately
Red / White Parking Brake
Output (-)
Purple / White Vehicle Speed
Output
Blue Not Used
Blue / White Not Used
Red Accessory Output
(1 amp)
Orange / White Illumination Output
(+)
Green Reverse Output (+)
Interface Connector
Yellow Battery +12v
Black Ground
Blue/White Not Used
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
Red/White RCA Factory AUX Jack
Vehicle Connector
SWC Connector
9
1
Pacific Accessory Corporation
Interface Connector
See above chart for
wire color descriptions.
Vehicle Connector
See above chart for
wire color description.
SWC Connection
x4
See above chart for
different radio type
connections
Acc On/
Programming
LED
Programming
Button
Wiring SWC Connection
Page 1
Blue/Yellow Kenwood, Newer
JVC, OEM or
Blaupunkt
3.5mm Jack Alpine, JVC,
Clarion, Fusion,
Pioneer, Sony,
Valor, Boyo, Dual,
Lightning Audio,
Visteon or Advent
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