Problem starting car after replacement a running light

Had an interesting thing happen to me just now.

I had bought a replacement running light for my 99 trans am from a recycled parts dealer. I changed out the pigtail along with a new light. While doing this, i had left the key on the 'on' position, which is right before the 'start' position. I had also left the right 'blinker' on to make sure that i replaced the light correctly.

I had put everything back together and was ready to start the car. Having Identity Anti-Theft, i hit the button and turned the switch.....but to my surprise.....nothing happened. The car just didn't want to start. Im not sure exactly what i could have done by changing out the running light pigtail but im sorta running out of ideas.

I had checked fuses already under the hood and they seem to be doing alright..... im just at at point where im not sure exactly to continue with this.....

any feedback would be greatly appreciated. =D

how long was the blinker left in the on position? Have you tried jumping it with another car? Sounds like possibly a dead battery.

unhook your battery and let it sit, then hook it up and try to crank it up