Greetings, first time poster. I purchased a used Roland VK8M to use with my PSRS950. This is a module that should give you a more accurate Hammond sound, even though it is 15 year old technology. It has no keys of its own, so I hooked up midi out from the keyboard to midi in to the module per the directions. Then I ran a cable from the module output to the input on the keyboard, which doubles as the mic in plug. It sounds great given its age, but the problem is that I can't figure out how (if possible) to get it to stay on the upper half of the split keyboard. When I'm playing with accompaniment from the keyboard, the Roland comes through on the entire keyboard, just not the top--which doesn't sound very good. I'm stumped. Any ideas?