As my car (Zafira B) does not allow a nice integration of the DUDUAUTO rear camera, I am looking to buy 3rd party rear view camera. What I don't understand is how the dynamic trajectory lines are added to the video image.
If I want dynamic trajectory lines, do I need a camera that supports it? Or is this something that the DUDU7 will add itself if the CANBUS from my car delivers a signal from a steering wheel sensor?
I found a very nice assembly unit that might just be what I need to fit the original camera in 
You need the CANBUS box in order to get the steering wheel corner information so that the data goes to DUDU and the dynamic tracks appear
Thanks and understood, I just ordered a CANBUS box: GM‑RZ‑11.
I'm using a can adapter Simple soft RP5-OP-001, it only does basic functions, it doesn't even show if the doors are open. You can forget about dynamic lines. Car is Astra H
Yesterday I finished the install in the car with the RP5-OP-001, although some functions are not working, I am very satisfied with the DUDU7. Installing the reverse camera went perfect and the sound quality is very good, even on default speakers it's a surprise. Radio reception is also suddenly very well 
A couple of days earlier I received the GM-RZ-11 but it had 20 pins (didn't know that the loom was 16pin). I tried to get a diagram or pin layout for the GM-RZ-11 CANBUS box but that was not available online. I figured if I have that I would have been able to re-pin or get a new loom to get it to work. A new loom was not available, and merkede only supports 16pin according to support.
So, I've opened the GM-RZ-11 box to look at the PCB, I then contacted the manufactor, to see if they can help. But I also think that this CANBUS box is not meant to work with my model (Opel Zafira B 2007).
Support from Merkede advised me to use the RP5-OP-001, according to them it should work with the SWC and the simple soft website mentions it too, specifically for my model. In Vehicle settings I have tried all Simple -> OPEL options, none of them recognize the SWC.
Anyway, I finished the installation, installed the latest DUDUOS 3.6 and I am super happy with the current result.
Working:
Not Working:
Support mentioned to print the CANBUS output via factory settings, to see what's wrong with the SWC, I will open a new topic for that. If I get a reply from Raise for the GM-RZ-11 box pin out, I will try again with that box too.
Thnx so much dudu-lai , you are much faster then raise support
I soldered the correct lines to the corresponding pins, at least I think I have but no luck yet, the HU is not booting.
I used the below:
1 GND
2 +12V
4 CAN-L (single thread GMLAN)
5 ILL
6 ACC
7 PARK
8 REV
13 RX
14 TX
I might have fried the PCB last Tuesday already trying 2 - 3 times with different pin outs before you gave me these. 
Wish I waited now. The HU is working fine on the RP5-OP-001 though, I got the SWC working now. So I am figuring to maybe buy a new GM-RZ-11 to try again.
Do you think the pins I just tried are the correct ones and the HU should have booted?
ordered a new one, I am curious now if this works.
Tried with a fresh GM-RZ-11 unit but unfortunately the dudu7 doesn't turn on. So I decided to leave it with the RP5-OP-001.
