Need a wiring diagram for my 1995 sl320 stereo system including the bose subwoof

What is your question?

The stereo system cuts out while making a high pitch noise

What makes this problem better or worse?

It works approx 1min hisses then cuts off

How long has your 1995 Mercedes-Benz SL320 had this problem?

Since ive had the car 3 months