Hello, show you my goods that I havehttp://s3.imgimg.de/…/IMAG0048e2bd430cjpg.2.jpg Is certainly not the best but naja At the bass box there are 2 connections + and – and at the power stage also how do I connect this now? I have zzt only the rear magnat boxes on the radio there comes now also bass and at the front also I have put with the fader a little quieter in front Now my question if you have the power stage incl bass box, comes over the normal boxes still bass which are connected via radio? Because actually the bass box is then responsible for the power cable for the battery and the mass cable is missing I still have to get right from the ATU I fear… or is that also in the normal electric market trade? What do I need there everything?