To make a long story longer, two years ago i had a imola yellow S3 which i loved. I liked the idea of a cd head unit but didnt want to loose the bose or rear stack so i bought a concert ll head unit from a TT as i tought if it worked in TT it would work in an S3, when I fitted it to the S3 it worked but not as it should, it did not come on or go off with the key, also the illimation on the buttons and controls did not work when the side lights were switched on. I removed it from the car and put it away. Shortly after I sold The car. Recently I have bought an other S3 an want to give the concert ll another go. Can anyone here tell me if this unit can be made work in an S3