CPJex(CarPc Joycon EX) converts steering wheel remote controller into USB keyboard and HID remote controller.
You can control MediaPlayer, Winamp or front-end(ex. CentraFuse) with your steering wheel audio remote controller.

 

Hardware feature
- Converts resistance-output steering wheel remote controller into USB HID keyboard and HID remote controller.
- Works same as standard USB HID keyboard and HID remote controller by hardware.
- 24V tolerant 4 channel resistance input.
- Supports 28 physical buttons, 52 programmable logical buttons.
- 2 logical button for one physical button, up to 5 simultaneous key strokes by one button.
- 2 programmable LED port.
- Remote wake-up(resume PC from sleep with steering wheel remote controller).
- Temperature range : -40 ~ +85°C

JoyCon Explorer aided feature
- Preset change by Preset up and down buttons.
- Speech and OSD when preset is changed.
- Application link(application launches and popup with preset changing).
- Speech when application launches and a button is pressed.
- Online firmware update.
- No external power or driver installation needs.
- Available OS : Windows 7, Vista, XP, 2003
(JoyCon Explorer supports Windows XP and the later version.
JoyCon Explorer does not support Linux.)

App Link enables to launch application with steering wheel remote control's button and switch application when preset is changed.

http://www.changjack.com/software/Jex_Setup_XP(100609).zip
http://www.changjack.com/software/Jex_Setup_Win7(100609).zip

Connect two wires of CarPC JoyCon EX’s input channel to the remote controls, and connect USB.

This is the typical resistance-output steering wheel remote controller's circuit.
You can put additional buttons like green box below by DIY, if you want.

You can control two external LED.

UserGuide
http://www.changjack.com/user_guide/cpjex/CarPC_JoyCon_EX_UserGuide_eng.pdf

You can use typical USB cam as rearview camera with CarPC JoyCon EX.
Any USB camera or video capture device can be rearview camera. 


Rearveiws popups when Channel C detects reversing light,


Jex Cam shows when reversing light is detected.
Any video capture device can be rearview camera.
Horizontal and Vertical Mirror is supported.

This video shows rearveiw test with USB camera.

Boot trouble of previous version with some Intel ITX mainboard(D945GCLF2) and USB hub was solved.

How to use Steering wheel remote controls in Centrafuse
Using remote controls both for Car Audio and CarPC

Supported cars(reported so far):
Toyota Camry 2010
Toyota Corolla 2009
Alfa Romeo 156 2.0 JTS
Citroen xantia
Fiat GrandePunto
Fiesta model 2002-2008 -N214
NISSAN NAVARA 2007
NISSAN cube
Honda Ridgeline
Mitsubishi 380GT 2006
Subaru impreza 2008
Hyundai all model(except Sonata2/3, Marcia, Santamo)
KIA all model
GM Daewoo all model
and many other cars with resistive steering wheel remote controls

Supported remote controller:
Sony RM-X2S