I was a passenger and I heard an occasional bell like noise. Thought it was an alarm on my mobile, but it was coming from the car. The radio was off, panel showing the analogue clock.

Eventually, 20 mins or so later, a traffic announcement came through. Turned radio off again. Noise did not recur. Weird.

Edited 26 August, 20187 yr by gregoir

Must just be me.  Or something in the boot.