I have a 2003 A4 with the standard Audi symphony radio/tape/cd multichanger head unit. I’m experiencing a problem with the sound dropping out from all the passenger side speakers (front and back). At first I thought it was a loose cable, as it would drop out intermittently while driving, but I’ve actually found I can recreate the issue while the car is stationary by adjusting the volume up and down. At high volume it seems mostly ok; at low volumes the audio drops out intermittently on one side. Before I start pulling the stereo and speaker cables etc, I just wanted to know if anyone else has had this issue. If it’s a faulty head unit I’ll just live with it, but if it’s likely to be a relatively straightforward fix I’ll give it a go.