Hello I have a rather strange problem in my car. I bought a Golf 2 a long time ago and wanted to add a little bit of music for the summer. He just doesn’t want to do music. To my problem: When I bought the car only one speaker was connected and apart from this one also nobody installed in the car. So I bought such a vehicle-specific set from Alpine (4 speakers) and everything nicely installed and connected with the ISO cable but the radio does not give a sound of itself. Radio goes quite normal and I have already resettet but it remained mute. Great then I just thought to go to a different car and try there and see there Radio makes lala. I return again and every single speaker – all work. Again radio – no sound final stage built in and all speakers directly connected – no sound – works. End stage tested in the other car – what’s going on? I think I have tried everything out and everything works just gratefully in my golf.