Well, I just used the tutorial in this topic. When you follow each step closely it can’t go wrong!
The problem with the Juno is that it can’t receive or send midi cc commands, it uses Sysex instead. With this tutorial you can “translate” the cc commands coming from Renoise’s midi cc device to Sysex commands 
Good luck!
Btw, check this link out. You can find everything about the Juno-106 here…