I am trying to do the same.
I do know that opel radios and the displays use I2C bus type coms with each other.
I have a motherboard that has I2C on it and I am hopping to use it to send info to the display or take the info from the radio and display it in centrafuse.
I have found a site that people have moded the displays here is the link
I hope the OP of this comes back and let us know how he is getting on with his project.
Sorry for the long hiatus, I'm back now if anyone has any questions. Only been a couple of years..
As far as I got with this project was having WinAmp run entirely off my laptop, with steering wheel controls and updating the car's screen via CAN (along with all track listings/playlists, sound options, EQ options, subwoofer volume etc). At that point to some degree the challenge/fun was over for me and I lost interest... but now due to ICE reasons I've decided I want to get it going ASAP, so going to take a little holiday from work and see where I can get.
Two main other things demotivated me: smoking my FM radio receiver and being unable to find any DAB+ usb receiver, and not being able to find a screen that'd fit neatly into the head unit I have. All a fraction too big!
I've now decided to simplify things though, run screen-less using just the OEM screen for info (why not!) and I'm no longer addicted to radio.. so I'll cross that bridge when I get to it.
So that pretty much means.. I'm already there, just need to hook a dedicated car pc up to the head unit's front panel (so I can use stock buttons/volume knob), rewrite it and probably open source what I've done.
Will update this thread as I go.
Welcome back Mania!
We've been waiting so long for such update. Keep us posted, it's still very interesting
Agreed, it's funny actually - I was just on here yesterday for the first time in quite a while, checking to see if you had made any progress with you project, and trying to get motivated to work on my own. Then this morning I get an email since I'm subscribed to your thread.
Originally Posted by ma_jk
Anyway, awesome work - keep us posted!