Electrical problems. Please help.

[AndyCs13]

in my s14

All i wanted to do was put a head unit in my car.

i have managed to mess the whole thing up. I obviously messed the wiring up.

i removed every wire that i added today and taped the ends of it just to be sure.

The car will not start, the blower motor will not come on, the turn signals will not come on. Same with the power windows and door locks, and the sun roof. none of that works. Needless to say i dont have music in my car.

The head lights, tail lights, dome light, hazard lights and cluster lights all come on.

i've checked every fuse 3 times.

im never doing electrical shit on my car again. not even changing a head light.