Car doesn't start after supercharger installation

DrBacon

Now this one has me quite a bit stumped. I mostly wrapped up the installation of the supercharger earlier today, at least to the point where it can idle and it ran pretty good actually considering it's on the base tune and everything. I let the car run for a few minutes and turned it off to check everything, ran it again for another few minutes and turned it off once again, I changed nothing, it sat for a few hours and when I tried to start it for the third time to get the idle data logging done the car cranked for about half a second and just stopped. Repeated attempts at trying to start the car did nothing, no cranking of the starter or anything. I have put the battery up to a charger and it is fully charged, I've checked a bunch of fuses, even replaced the battery in my key fob. When the ignition is on, the radiator fans start running and I don't remember that happening before but I could be wrong. I tried to connect to the ecu with my ecutek dongle and it doesn't connect anymore, so it seems the ecu either isn't getting power or some how is fried. Honestly I have no idea what's going on with it.