Count me in as another user with the relay clicking problem. Finally had some time to hook my system up only to find I have the same problem. I am running with a 300W inverter and everything works fine bypassing the uSDC. My Dodge has a dual battery setup already.
I have a question about the power on sense. I read in one area of your manual to connect it to 12V but in the chart that shows the min/max it lists 5.5V for max for a high on that signal. Which voltage should it be on and is a regular 1N4148 diode ok to use?