Random electronic sound in Tiguan

volkswagen
noises
tiguan

#1

In July i bought a 2009 VW Tiguan with 4200 miles on it. Sometimes there is a random electronic sound coming from the dash - it can be loud or soft, short or long, while I’m turning or driving straight ahead, radio on or off. The VW mechanic at the dealership has no idea what it could be. Suggestions?