Day 5+ ;) My stuff on a carboard box has transformed into a fully working midibox. I call it the OOMbox 6581, my nickname is Oomiz. The sound is amazing! I tried feeding it the sidtune Rampert! It's one that pretty much tests every aspect of the sid-chip and I must have won the sid-lottery since my 6581 does exactly what it is supposed to. Anyway since I've written this thread to get help but also help others I want to give you newcomers a hint when connecting the DINX module. On the PCBs from smashtv, on the 10 header connectors, J3-J6, only the 10th pin is ground. NOT the 9th. This may be obvious for most people but I fooled myself and wasted quite some time figuring out why my buttons didn't work. About the buttons in my case, they are custom made by me since I couldn't find nice 1cm diameter buttons that are a bit soft but still tactile. I had a large bag of really long (20mm shaft) 6x6mm tactile switches so what I did was that I cut those short. Not something that I recommend, getting them equally long is tedious. Then I wired them up on a perfboard and put a device fot (the soft pads you put under stuff) in every hole of the fronpanel. Since the bottom of the pads are a bit larger than the hole they stay in the holes without actually attaching them with glue or anything to the switch shafts. The entire thing is built into a pac-tec KEU-10. It's more or less ready and has two banksticks, A0 for patches and A7 for ensembles. All I have to do now is figure out what I need a midibox for, I'm not a musician, but it sure was fun building it. Last step would probably be to paint the case, Oh and I might want to find a prettier encoder knob ;) Thanks to everyone helping out!