Need helps!

I got a 2000 Toyota Celica GT (Automatic transmission) that I just installed a cold air intake in. The problem is, when I took it for a test run, all the electrical went out. (power windows, A/C, CD player, everything from the center console and dash) Even when I push the brake in I cant move my gear selector. I thought it was fuses but all of them checked out and all was okay.

Anyone got an idea how to fix this?