Confirmed working on my Dudu7 in my Meriva B (same generation car). I can adjust volume using the rotary controller and select FM radio playback.
@surfer63 Have you connected all the connectors on the CD400 panel (the important one is the black connector on the middle position on the right) and which CANBUS profile have you selected?
@ DUDU_lai
There is no way to get these buttons to work as before.
These buttons control the OEM CD main unit, but do not access the Android radio!
Ford Ecosport models have similar panel buttons, but only the up/down song buttons or volume knob work!
dudu-lai
https://www.youtube.com/watch?v=Iq5JAi7jVUQ
Bury
What model of the radio? Any link to where you bought it? Photos of the wiring harness and CAN decoder with the model label clearly visible? Maybe it's enough to change the car model in the CAN settings of the radio to something else? Maybe Astra J, Buick, Regal? Try different settings and restart the device each time.
steefl86
Radio is Dudu 7 https://pl.aliexpress.com/item/1005008126580678.html?spm=a2g0o.order_list.order_list_main.11.21ef1c24F4guZB&gatewayAdapt=glo2pol
I tried every car model that made sense.
I'll take out the radio and take the photos tomorrow ,but the harness looks like this one.
Bury First of all, take a photo of the CAN box you received and check if all available plugs are properly connected to the sockets on the button panel.
If this is exactly the unit you sent the link to, there might be a problem, because there’s no mention anywhere that it’s specifically for the Insignia or even for Opel in general — and Opels are quite particular when it comes to head units. You really need a radio tailored to the exact model.
Widzę, że polskie menu w radiu więc, chyba Polak
Bury I didn’t express myself clearly — I meant the CAN decoder you received. It might not be suitable for your model. After I changed the radio, I lost the turn signal sound, and the central locking indicator stays lit all the time because there’s no full communication with the car’s computer. The turn signal sound was originally emitted either by the factory radio or the display (I’m not entirely sure), and when I activate one of the indicators, the light turns off (there are no errors in the system and everything works fine). I had to buy a small speaker that now emits the turn signal sound. Opels are quirky like that, and I’ve just ordered a different CAN decoder myself, since I currently have the option for a Meriva from 2011, but mine is a 2012.
The control from the button panel only started working for me after I connected the plug I previously mentioned to the cable that was originally connected to the factory display
Same model CANbus adapter in my Meriva B. I had an issue where the 8 pin CANbus plug had not clipped into the socket of the Dudu7 (completely my fault) and it worked it's way loose during installation. The display would intermittently show the doors open and the fan controls being used but volume control and the SWC buttons were unreliable. After fixing the connector securely it all works well.
TL : DR: Check: Settings->About->Model name. If the text string ends Unknown CANbus version double check the 8 pin CANbus plug.
Bury I currently have the same CAN decoder, but with SW version: V0009, and now it plays the turn signal sounds through the built-in speaker. With the previous CAN decoder, I had to connect an additional speaker for the turn signals, and there was a constant central locking error (red door with a key icon) that would disappear when the turn signal was activated, but it would come back shortly after. And just like our friend UK_Matt already mentioned, double-check all the wiring connections and make sure everything is properly secured. You might also try disconnecting the car battery for an hour.
