Pac CH1A-RSX User Manual
Radio Replacement and Steering Wheel Control
SWC Connection
x4
See above chart for
different radio type
connections
Acc On/
Programming
LED
Programming
Button
CH1A-RSX
Interface for Chrysler/Dodge/Jeep Vehicles
Introduction and Features
The CH1A-RSX interface allows the replacement of a factory radio in select Chrysler / Dodge / Jeep vehicles with MSCAN
or LSFT-CAN databus radios. Using this interface will retain factory features such as steering wheel controls (SWC)
vehicle entertainment system (VES) and the factory audio amplier 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 CH1A-RSX 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. These instructions only apply to revision 1.5.4.5 of the product. 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 next page 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.
Wiring Connection Chart
Interface Connector
Red / White Parking Brake
Output (-)
Purple / White Vehicle Speed
Output (VSS)
Blue / White Amp Turn On Input
Red Accessory Output
Output (10 amp)
Orange / White Illumination Output
(+)
Green Reverse Output (+)
Illustration / Schematic
Wiring SWC Connection
Vehicle Connector
Yellow Battery +12v
Black Ground
Blue Antenna On Input
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
SWC Connector
Blue / Yellow Kenwood, Newer
JVC
3.5mm Jack Alpine, JVC,
Clarion, Fusion,
Pioneer, Sony,
Dual, Axxera,
Lightning Audio,
Jensen, Rockford
Fosgate
Aftermarket Radio
Connections
Vehicle
Connector
© 2018 AAMP Global. All rights reserved. PAC is a Power Brand of AAMP Global.
PAC-audio.com
Rev:1
Date: 092718
Page 1
Radio Replacement and Steering Wheel Control
Alpine
JVC
Kenwood
Clarion
Sony/Pioneer
Fusion
Phone
Receive
Receive
Answer
Send/End
Answer
Power
1
2
3
4
5
6
7
8
9
0
CH1A-RSX
Interface for Chrysler/Dodge/Jeep Vehicles
Installation Steps
SET RADIO SELECT SWITCH
SET RADIO SELECT SWITCH
Alpine JVC
Kenwood /
Lightning Audio
Clarion /
Nakamichi
Pioneer /
Other*
Sony Fusion
1 2 3 4 7 8 9
*Other - Dual / Axxera, Jensen, Rockford Fosgate
1. 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.
2. Only one of the two provided radio harnesses will be used. Remove the factory installed radio to determine the correct harness for your
particular vehicle.
3. Make all connections as described in the connection chart on page 1. Vehicles without a factory amplier: Connect the aftermarket
radio’s front and rear speaker wires to the vehicle connector. Vehicles with a factory amplier: The factory amplier only accepts two
channels of audio input (left and right). Connect the front outputs of the aftermarket radio to the rear inputs of the vehicle connector. This
will allow navigation voice prompts and Bluetooth calls to be heard. The rear speaker outputs of the aftermarket radio are not used. Fading
is not supported in this application. The factory amplier’s fading is controlled by data communication from the factory radio. Neither the
aftermarket radio, or the RP Advanced interface have the ability to control the amplier’s fader.
4. Connect the SWC wire according to the chart on page 1 (aftermarket radio MUST support a wired remote input)
5. If you wish to reassign functions to the SWC or utilize short press long press dual command functionality, follow the programming instructions
on the next page.
Default Steering Wheel Control Programming
IMPORTANT! 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.
Default SWC Button Assignments
Volume +
Volume Source
Track +
Track Preset +
Voice
Short Press Long Press Dual Command Functionality
This feature allows you to assign two aftermarket radio functions to each of the vehicles SWC buttons. It can be used with as
many of the buttons as the user likes or none at all. When this functionality is implemented, quickly pressing and releasing a SWC
button will initiate the short press command, while pressing and holding a SWC button for longer than two seconds will initiate the
long press command. Please note that no long press commands are programmed by default. If you wish to assign dual command
functionality to the SWC please follow the programming steps on the next page.
Volume + Volume + Volume + Volume + Volume + Volume +
Volume - Volume - Volume - Volume - Volume - Volume Source Source Source Source Source Source
Track + Track + Track + Search + Track + Track +
Track - Track - Track - Search - Track - Track Preset + Preset Disc/Radio + Band Preset + Audio
Voice Voice Voice Voice Voice Mute
© 2018 AAMP Global. All rights reserved. PAC is a Power Brand of AAMP Global.
PAC-audio.com
Rev:1
Date: 092718
Page 2
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