PAC RP4-CH21 User Manual Download Page 4

Radio Replacement & Steering Wheel Control Interface 

for Dodge/Jeep/Ram Vehicles

RP4-CH21

 © 2018 AAMP Global. All rights reserved. PAC is a Power Brand of AAMP Global.

PAC-audio.com

Pacific Accessory Corporation

Page 4

Rev: 2

Date: 041218

Optional Steering Wheel Control Programming (cont)

Alpine

JVC

Kenwood

Clarion

Other *

Pioneer

Sony

Fusion

1

2

Volume -

Volume -

Volume -

Volume -

Volume -

Volume -

Volume -

Volume -

3

Mute

Mute

Mute

Mute

Mute

Mute

Mute

Mute

4

Source

Source

Source

Source

5

Preset -

Track +

Play

Preset -

Preset -

Preset -

Track +

6

Source

Track -

Track +

Search -

Source

Source

Source / End Call

Track -

7

Track +

Band / Disc +

Track -

Band

Track +

Track +

Track +

Audio

8

Track -

Preset / Disc -

Disc / FM +

Send / End

Track -

Track -

Track -

Power

9

Power

Select

Disc / AM -

Send 

Band

Band

Band

10

Enter / Play

Attenuation

Answer

End

Answer **

Phone Menu

Power / End Call

11

Band / Program

Phone Receive

Voice Dial

VR

End **

Answer Call

Voice Dial / Answer / End Call

12

Receive

Phone Reject

On Hook

PTT **

End Call

VR (Android Auto & Car Play) 

Answer / End Call***

13

End

Voice Dial

Off Hook

VR

14

VR

Power

Mute

15

* Advent, Boyo, Dual, Lightning Audio, Jensen, Rockford Fosgate & Visteon     ** Jensen & Advent ONLY     ***

 

XAV-AX100 Only

Optional Programming Order

Programming

1.  Turn the key to the ignition position.

2.  Press and release programming button on the side of the interface.

3.  Within 7 seconds, press the button that is to be learned on the steering wheel. The LED will turn off when the button is pressed. 

At this point you have two options:

A. For short press functionality: 

Release the button within 1.5 seconds. The LED will turn back on. 

B. For long press functionality: 

Hold the button until the LED starts blinking. Release the button and the LED will  

 

go back to solid.

4.  If you need to program more buttons, repeat step 3  for each additional audio function on the steering wheel.

5. 

If you come across a function in the chart that your steering wheel does not have, or you do not want to program, press and 

release the program button on the side of the interface to skip that function. 

6. 

Once programming is completed, wait seven seconds. The LED will flash three times indicating end of programming.

7.  Test the interface for proper functionality. Whenever a SWC is pressed the LED on the interface should blink. If any function 

does not work, repeat the programming steps

RP4-CH21 SWC Notes

1.  In vehicles that do not have SWC for the radio but do have 

SWC for the menu you can program the up/down/left/right 

arrows to whatever you want. We recommend that you 

have the DIC in the speedometer screen when using the 

SWC for the radio (Fig.1)

2.  The Mute, Answer and End buttons in the Ram Promaster 

can not be programmed for long press functionality.

Fig. 1

2 3 4 5

 6 7 

8 9

 0

 

Alpine

JVC

Kenwood /  

Lightning Audio

Clarion / 

Nakamichi

Pioneer / 

Other*

Sony

Fusion

1

2

3

4

7

8

9

*Other - Dual / Axxera (these brands could also have 2 - wire resistive), Jensen, Rockford Fosgate 

SET RADIO SELECT SWITCH

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