Adding sub
First time posting! I bought my wife a 2019 A3 a couple months back and now she's wanting to add a sub. This does have a sub in the rear deck but it's useless. (It's doesn't have the b&o setup). I already have all the equipment from her previous car but I've been trying to do my research before tearing it apart. I've looked for a week trying to find a wiring diagram so I can tap into and run to my lc2i. Any help on color of wires either off the front,rear or even sub would be much appreciated!



