I had a little trouble at first too. Plug everything in and turn the PC4 on and make sure you SID is plugged in to the last available bus port (took me about 2 hours to realize the SID is in fact a male USB haha). Then from there open myReef 2.0 and do the updates (detailed instructions of this are in the DA support forums). I didn't mess around with programming through the software, found it easier to just do it all through the headunit (Plus it gets you familiar with how to get through the menus and such, since this is what you'll be using the most) Also, if you need help just shoot their customer service an email they helped me out quickly