like starting with all AC going to one side and then...,
by the way -- one thing never to do (but is common in AV installations) is to bundle cables together (e.g, all interconnects down one side for example). Bundling interconnects magnifies the problems of vibration borne interference and is a big and very audible no no in a high resolution two channel system. In complex AV setups with many more cables it may be a cost worth living with but in two channel keep the cables loose and floating free of one another