Hello I bought me a new Sony car radio for my beautiful Audi 80 and had it installed by a guy at ATU. BIs There’s also everything worked out only if I drive faster than 60 kmh the radio simply goes off. Can it be what is not connected to the current properly or simply has to a stronger fuse in the car. Now is with me a 15er Drin. Who can help me to that I am very grateful.