I'm trying to install a chinese reversing camera to my 2017 M6. The item came with a cable but the connector doesn't fit in any of the connectors behind CMU... I have contacted the seller but trying to make the chinese sellers understand my problems is PITA!
I have tried to collect info from workshop manuals and other forums. So far I have managed to find out where the video signal is supposed to be connected in the CMU. I don't have the wiring diagrams of M6 but I have founds this pinout diagram of M3 and I believe they share the same pins and connectors. The connector for the camera is the white with 28 pins.
So according to this pinout diagram 1A = VIDEO +, 1B = VIDEO GND, 1C = CAMERA POWER (+) 1D = CAMERA POWER GND. The original camera is powered with 6V so I assume there is 6V voltage between 1C and 1D.
After pulling my CMU out I noticed that there is already cables connected to the 1A and 1B pins. This got me thinking that maybe they already have routed the cables for the camera. I checked the wires in the trunk area but couldn't see any loose cables. In the workshop manual's camera diagnostic section reads this:
(edit. I found out that this part is from pre MZD Connect system)
- Inspect the following wiring harnesses between the audio unit and rear mount camera.
- Terminal 6A (4-pin, power)—terminal A (5-pin, power)
- Terminal 6C (4-pin, GND)—terminal E (8-pin, V-GND)
- Terminal 6D (4-pin, COMPOSITE)—terminal C (8-pin, COMPOSITE)
- Terminal 6B (4-pin, signal GND)—terminal E (5-pin, sield GND
When I peeled away the left side garnish in the trunk, I was able to see a cluster of cables. I wonder if the cables for the camera are already in there.Has anyone else installed an after market reversing camera to a 3rd gen M6?
I would be thankful if someone could confirm these pinouts (1A,1B,1C,1D) of the 28-pin connector behind the CMU!