User Manual

Radio Replacement and Steering Wheel Control
Interface for Select General Motors Vehicles
RP4-GM11
© 2018 AAMP Global. All rights reserved. PAC is a Power Brand of AAMP Global.
PAC-audio.com
Pacific Accessory Corporation
Page 1
Rev: 2
Date:052518
Introduction and Features
Important Notes
Wiring Connection Chart
Illustration / Schematic
The RP4-GM11 interface allows the replacement of a factory radio in select General Motors vehicles with Class II radios.
Using this interface will retain factory features such as steering wheel controls (SWC), Warning Chimes, Rear Seat
Controls (RSC, select vehicles) and the BOSE amplier (Standard or Premium) 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-GM11 also provides data bus driven outputs such as retained accessory power (RAP),
vehicle speed sensor (VSS), illumination, reverse trigger and parking brake.
1. These instructions only apply to R.2.2.6.8 or later revisions. The revision info can be found on a small white sticker on the interface and
packaging.
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 page 2 for setting chart).
3. The interface comes pre-programmed for all of the vehicle’s 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. PLEASE
NOTE: Due to the many different possible OEM SWC congurations, some applications may need to be reprogrammed for the SWC
assignments to make sense.
4. RSC buttons that are identical to the SWC will mimic the SWC one for one.
5. To prevent over driven audio when installing into a vehicle with a Bose system and the aftermarket radio does not have low level outputs
then a 4 channel or 2 x 2 channel LOC’s are recommended to match the input voltage. We recommend the LP5-4 or two LP5-2 or any other
LOC that have the same characteristics as the LP5-4 or LP5-2 will work as well.
6. To prevent ground loop or engine noise when installing aftermarket radios that use a common ground on the RCA outputs, a pair of ground
loop isolators (part # SNI-1 or LPGL-2) are required.
7. The LED will ash whenever a SWC button is pressed.
Red / White Parking Brake
Output (-)
Purple / White Vehicle Speed
Output
Blue / White Amp Turn On Input
Red Accessory Output
(10 Amp)
Orange / White Illumination Output
(+)
Green Reverse Output (+)
Interface Connector
Yellow Battery +12v
Black Ground
White Front L + input
White / Black Front L - input
Gray Front R + input
Gray / Black Front R - input
Green Rear L + input
Green / Black Rear L - input
Purple Rear R + input
Purple / Black Rear R - input
Vehicle Connector
SWC Connector
Blue / Yellow Kenwood, Newer
JVC
3.5mm Jack Alpine, JVC,
Clarion, Fusion,
Pioneer, Sony,
Boyo, Dual,
Lightning Audio,
Visteon or Advent
®
Cut for Non-Bose systems
SWC Connection
x4
See above chart for
different radio type
connections
Acc On/
Programming
LED
Programming
Button
Wiring SWC Connection
Aftermarket
Radio
Connections
Vehicle
Connections