Rep Power: 0

I’m installing a skunk2 cai on my 2015 civic si . The intake involves relocating the battery and extending the negative battery terminal wire as well as relocating the negative battery grounding wire. Anyways, I finished the install and when I went to start the car, the electronics flickered and the engine didn't turn over. So after that point, the car was completely dead electrically. I started poking around with a voltmeter and found that the place where I grounded the negative battery terminal after relocating it was insulated so it was not effective( the CAI installation instructions said to bolt the grounding cable to the bottom bolt on the master break fluid cylinder bracket, but after the voltmeter tipped me off I inspected the bracket and realized it was painted thus not being an effective grounding point). So I solved this issue, reconnected the terminals to the battery, but the car is still deader than a door nail. Battery is still good, and I checked all the fuses in the engine compartment and none of them are blown. So I was wondering if the car is in a locked state as a result of not being grounded properly when I attempted starting it last, and if there was some fuse I needed to pull or some reset button somewhere to press to unlock it?? I don't know... please help

 
Rep Power: 222

Battery terminals tight? Did you check the fuses with a meter?