I am trying to use a Yamaha EW401 into my Presonus Audiobox USB and Cakewalk DAW. It works fine as a midi controller but I cannot get it to input audio into the DAW and output it through the Presonus. I see on the internet that 2 ASIO drivers cannot co-exist together and that seems true because whichever I select, the other is greyed out. How can I get this to do what Yamaha says it will? Comments please.