experts

Hi folks, Can anyone tell me why when I connect my pc to either of my home audio systems, (Quad and B&O) the sound quality is superb, however if I connect, using the same leads, cables plugs etc to a public address system or group type amplifier there is lots of background noise that sounds...

Hello all. I'm hoping to get into Mercedes ownership at the budget end (if there is one!). I hope someone can give me some advice on a 560 sec I'm thinking of buying. The car has a good documented history - mainly main dealer up to 70k and then Merc specialist from then til now which is about...