Hello,
I am having trouble finding the correct wiring harness in order to install an aftermarket touch screen stereo. I have a 2007 Audi A4 Quattro that has an Audi Symphony (not II) in dash cd changer. When you unplug the Symphony, the black plug casing, which contains smaller plugs that are colored as followed: a smaller green and identically shaped blue one (possibly for the steering wheel controls?), a yellowish colored one that is a bit larger and looks to be related to the actual stereo wiring and a set of wires connected (not a separate plug like the yellow one) directly into the black casing. This set of wires connected to the black casing seems to be the main issue. It looks like it should unplug but it is not an actual plug. It is shaped the same as the yellow one but is part of the larger black casing. I need to know where I can get the wiring harness for this. I have tried many websites that have a harness that has a black square with 2 sections that looks like the yellow plug can fit into as well as the black part if it were not part of the black casing. But, since the set of wires is not part of an actual plug and does not unplug from the black casing, it does not fit. If anyone has dealt with this please help! I know this is confusing, anyone who thinks they can help but needs pictures to be sure then let me know, I can send them to you. Also, I do not want to have to cut any wires to do this, I would like a harness that can just plug into the factory plugs/wires. Thanks in advance!