Project Overview
- I want to install a backup camera
- I want to be able to use Carplay
- I also want to use the buttons on the steering wheel.
Current situation
- BMW Professional Radio
- No phone integration
- No satellite radio
- No Bluetooth
- No MOST (fibre optic) unit.
Work content
- Rear camera
- Install camera
- Wiring: Camera power, video input and rear signal wire to car stereo
- Car stereo
- Wiring: Connect car stereo to car body
- Conversion adapter settings
- Enable steering wheel buttons
- CANBUS conversion
- Set corresponding buttons on car stereo
- Make use of AUX in the center of the car
- Convert to Line input?
- Wiring: Connect car stereo to car body
Equipment Expenses
- Back-up camera
- LIBEYAMA Trunk handle type
- Car stereo
- Main unit ATOTO F7 XE Single Din
- Single Din faceplate METRA 99-9306B
- Conversion cable RED WOLF
- Antenna line conversion cable Fakra
- CANBUS conversion Metra ASWC-1
- AUX conversion (carry-over?)
problem
Back-up camera routing
- Routing from the trunk to the inside of the vehicle. Does not pass through a rubber tube.
- The route into the vehicle goes through the storage space in the top cover, under the top cover, and from behind the rear seat.
Back-up camera power
The current from the reverse signal alone is not enough. Use a general-purpose relay to supply 12V directly.
- Today’s pin #30: From the constant power battery terminal.
- Pin #85: Body ground
- Pin #86: Signal line connected to the tail light reverse line
- Pin #87: Camera positive terminal
Continuous power supply for car stereo
Car stereos require a constant 12v power supply, but the 16-pin connector from the car body does not receive constant power.
Continuous power is obtained from the fuse box. Free slot #85
Screen flickering
Disconnect the backlight input line
Document
16pn connector
| Pin Number | Pin Name | Description | Connection |
|---|---|---|---|
| 1 | RR+ | Audio Output | 8 Purple |
| 2 | RF+ | Audio Output | 10 Grey |
| 3 | LF+ | Audio Output | 20 White |
| 4 | LR+ | Audio Output | 18 Green |
| 5 | RR- | 7 Purple Black | |
| 6 | RF- | 9 Grey Black | |
| 7 | LF- | 19 White Black | |
| 8 | LR- | 17 Green Black | |
| 9 | CAN-Low | Input/Output | ASWC-1 Blue/Pink |
| 10 | Remote_Mute | Input | |
| 11 | CAN-High | Input/Output | ASWC-1 pink |
| 12 | GND | 16 Black ASWC-1 Black | |
| 13 | RAD_ON (Antenna) | output | 5 Blue |
| 14 | KL58G (Backlight) | Input | |
| 15 | ACCS Gateway_UART_RxD | Input | 11 Red ASWC-1 Red |
| 16 | Input |
12 pin B connector
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | MIC+ | Input |
| 4 | Gateway_UART_TxD | Output |
| 6 | MIC GND | |
| 9 | Radio_UART_RxD | Input |
| 11 | Radio_UART_TxD | Output |
12 pin C connector
| Pin Number | Pin Name | Description |
|---|---|---|
| 2 | AUX_AF_L | Input |
| 5 | MIC Shield | |
| 6 | MONO+ | Input |
| 7 | AUX_AF_R | Input |
| 8 | AUX_AF_GND | |
| 11 | AUX_AF_SHIELD | |
| 12 | MONO- |
Aux input to Line in. split grounding cable to 2.