won't start!!! urgent help

I was installing my subs, from one car to another. my 98 Z28 is what they were going in. after i hooked up the amp, my car won't even try to start, it acts like it has no power. i completely unhooked everything that has to do with the amp, and still nothing. i have power to things like my windows, locks, trunk release, lights. but that is about it???? also, there was some sort of sensor on the back passenger side fenderwell, that i bumped. would this have anything to do with it????

nevermind, got it figured out. blew one of them big fuses underneath the hood.