Hi, I recently had a Dudu7 HU installed into my 2016 Mazda 2. Image and sound is excellent and the unit is very responsive, however the steering wheel controls, reverse camera and external mic are not working. I was initially sent the wrong wiring harness, and my mechanic advised me to acquire a harness that fit the connections in the below image:
This is the harness that I was sent upon requesting a new one from my DUDU salesperson, which only satisfied one of the three connections my mechanic advised were needed:
As mentioned, the unit powers on and works fine, however the aforementioned issues prevail. I have been unable to retrieve any information through the CANBUS, and am unsure if I need a different wiring harness or the issue lies elsewhere. I can provide further images and/or documentation if needed.