I am in the Roswell / Alpharetta / East Cobb area. My wife drives a 2013 A5 convertible and I just got a 2015 Q5 TDI. Both have about 30,000 miles. We are both pretty new Audi owners - it worked out funny this way. I would like to find someone trustworthy now - before I need it and I am generally not a fan of dealers. I appreciate any advice you can offer.