After figuring out the Audi amplifiers’s connector. The next thing to do was to design a breakout board to tap into the line out signals. I made it tap into all lines since you never know what might be necessary down the road. I noticed during one of my google searches that Tesla also uses a similar connector. A possibility Tesla owners can use this too!
Pictures from initial schematic capture, initial board layout, final preview and a sanity check on the board printed out on paper. Just need to send these out to get made and I’ll be set!