I'm also trying to connect my pc with a sven 4 to my bmw stock amp (i think it's not an hk amp because I only have 10 speakers in the car).
For now I have no sound, and I see in your picture that you have looped the blue wire to the 12v. Do I have to do this too, to make the amp and the sven4 and the pc working ?
If you have HK amp then you would have the "Harmon Kardon" sign and wirting by the speaker next to the door handles. You will also see the subwoofer in the trunk under the rear deck.
The reason I looped the blue wire was to turn on the amp. I am not sure what kind of amp you would have on non-HK upgrades. Try the same thing I did and loop the blue and red see if you get sound. Good Luck!
I follow your instructions and it works I have sound in the car now.
The sound is not very loud because I don't have the soundgate and I don't know where to buy this in France.
I wanted to know if you can give me a link to download the RR skin you use (no the Idrive but the other) ?
I don't have chance, the file downloaded is corrupted