09 A3 s-line stereo replacement

[brent a3]

So I have an 09 A3 s-line and I need to replace the stereo head unit and everywhere I take it to get the job done they say that the Bose setup requires a specific set of cables I believe to run between the stereo and the amp but no one can give me any more information was wondering if anyone here can spread anymore light on the situation? Thanks in advance