So my setup in advance Hu Pioneer deh 5700 sub – zapco 9.0 @ DD9512 front HBP 1502 (only transition solution) @ Rodek RC165 (will also ncoh be replaced or is it ok?) now my problem: I turn the loudbell from the radio to 0 bangts like sow in the sub (display goes over 1kw) and if I zape the different quiliezer stages or sometimes loudness activier etc bangts also if I turn off the radio without having previously turned out the end stage (knock out switch)… wodran is that? and another thing and that… at the FS one hears the quieter one hears such a “noise” but no limapipes even if car is off. have already tried mass directly from battery to amp brings nothing. my presumption would now be summa summa summarum that my radio is for popes and over jordan and so please tell me that it is only because of it. if yes which is so to recommend? nen clarion? or another? should naturally also cost ned too much, wanted finally still a “gro buy ße” battery and then the HU throws me back again, because it is more important to me for the first time. prefer to hear quieter than “shit”. battery comes then but afterwards greeting lukas