Moin, the left box in the amature board crackles something and in general the sound of the serial parts is not so dolle. Which exchange boxes the inclined 90s driver usually installs there? Is there also a standard solution for the rear passenger? The hat rack can be drilled for this calmly, the previous owner has already installed such a three way system of CIATronic with power stage under the shelf, that abe rnot works and I don’t trust the roasting: if there is a short in there, I want to r don’t shoot the radio with it. So, what’s reasonably cheap and good for something (best without the end stage, only boxes on my 4×50 Watt DVD radio). So, first of all, you have to go to the doctor Cu. Markus