Installation
I have no experience in installing car stereos but even I found this quite easy. Just get some tools and watch YouTube videos such as
https://www.youtube.com/user/fivestarcarstereoinc
Tools:
- nylon trim removal tools
- soldering iron
- wire stripper
- shrink tube
- heat gun
- zip ties
- crimp-on wire connectors
- Remove the wood or aluminum trim piece across the dash.
- Pry the climate control clips at the arrows in the picture. Be careful not to break the face plate.
- The radio has 2 Phillips head screws underneath on the sides holding it in.
- I used a PAC RadioPRO RP4.2-BM21 harness (top of picture) while the Joying harness is at the bottom of the picture.
From PAC harness to Joying harness:
Red (Accessory) - Red
Black (Ground) - Black
Orange/White (Illumination) - Orange/White
Blue/White (Amp Turn On) - Orange/Black
Light Green (Parking Brake) - Blue/White. Not really needed, can be overridden in options menu.
Blue/Yellow (Steering Wheel Controls) - Brown
Other Joying wires:
Yellow - To battery positive terminal
RCA - Backup camera video
Orange - Backup camera reverse trigger
PAC wires not used:
3.5mm - Steering Wheel Control Jack
Red/White - +12V Programmable Output
Brown - Steering Wheel recirculation button option
Purple/White (Reverse) Didn't work on my PAC unit, possibly because I have a manual transmission, had to use reverse light instead
Pink - Vehicle Speed Signal
Orange/White - Illumination directly from car harness
White/Black - HS-CAN + Input
White/Red - HS-CAN - Input
Joying wires not used:
White, Gray, Green, Purple and /Black negatives - since using RCA pre-amp outputs
Pink - Steering Wheel Controls KEY2
Blue - Antenna Control
- The PAC unit is also meant to connect to the chime speaker in the kick panel above the pedals. But when I did that there was an intermittent beep every couple of minutes or so, and my Park Distance Control wasn't working. So I disconnected the speaker because it was getting annoying.
UPDATE: I discovered that the solution was to downgrade the firmware to version 1.00.03 on the PAC website. PDC and chimes are now working with no more intermittent beep.
- You can run the battery and backup camera wires from the back of the car under the side sills.
- From behind the headunit, you can run these wires into the passenger side footwell or behind the glove box:
2 x USB ports
GPS Antenna
Battery
Backup Camera
And these into the driver's side:
Chime speaker wire
Bluetooth microphone
- Steering Wheel Controls. I set the PAC RadioPRO to Pioneer/Other but then found that a few signals were picked up by the Joying headunit as the same thing:
Mute / Answer
Preset + / Track +
Preset - / Track -
Source / Phone Menu
Band / VR
So you have to skip one of these duplicates. Also I couldn't get any long press functions to work. I programmed it like this:
Volume + - Volume +
Volume - - Volume -
Voice - VR - 'Ok Google' app in Joying
Phone - Answer
Source - Source
Recirculation - End Call - GPS app in Joying
Track + - Track +
Track - - Track -