Hey, I'm new to the forum and Audi. I've always been a fan of Audi/VW and just got a 2002 Audi A4 1.8 turbo Quattro. A friend of mine is a certified Audi mechanic so I wont be doing much work myself but i would like to upgrade the interior/radio/remote start (maybe?) and all that stuff. Any recommendations for where to order things and possible upgrades and common issue warnings would be vary much appreciated. thanks.