I'm looking for feedback from members regarding carrying 2 x Advanced Keys in the car at the same time. The request is prompted by a forthcoming European tour. If I brought just the one key with me for the few weeks that I planned to be away and managed to drop it over a cliff or in water or even just lose it, I would have a problem. However, if I bring 2 x keys with me and entrust one to the care of Mrs jerton, I could avoid such a mishap. Has anyone experienced any strange behaviour that could be attributed to having 2 x keys in the car at the same time, or been in the unfortunate situation of having lost an Advanced Key and had to call on Audi for assistance?