I have a 2000 GT. I was recently re-installing the factory radio. I had to move the a/c controls back to the original location. After I finished the installation, the air was hot. I moved the control to cool and the car turned off. I can no longer start the car.

Symptoms are as follows:

When I press the brake, the dome light shuts off.
My headlamps don't work.
No fuses are blown.
Battery is fully charged.
I can hear the starter ticking, but engine won't crank.

After several fuse pullings and checks, there is a black box next to the passenger fuse box that has a relay that keeps clicking off and on.

When I turn the key in the back position, the interior beep to let you know the doors with the key rapidly beeps with the before mentioned relay clicking.

Any suggestions?

 

Is the theft light flashing real fast? Also, if you hear a clicking when trying to start it means your battery is low. I know you said your battery is good, but how old is it?

 

It was before. I went through the motions of pressing the unlock button on the remote to disable the theft and it still doesn't start.

I have connected a battery charger that has a 100 amp car start booster and still no luck.