I got in the car this morning (99 C230K) and the radio decides to mute for 1 second every 5 seconds. At first I thought it was the station I was listening to but then I tried another preset and it kept doing it. I hit CD and it said "track 1" then went back to radio. It did this on all modes/sources. When I got to work I turned off the car and then turned it back on and the radio played everything including CD and no muting.

Whats causing this? It happened twice now.

PS its a fibre optic generation (1st) MB system.

Grr all these little problems lately!