Hi, I have just swapped out my old 3802 for a 3805. However when I came to put the speaker cables in (all have banana plugs on) they would not fit!! Now unless I'm missing something is there a different size of plug that needs to be used with the 3805 or is it bare wire only. I could not see anything in the manual or anything obvious on the connectors to enable my standard banana plugs to fit. Any thoughts?