i was working on the car the other day
and i had an old dash laying around so i decided to put it in and replace the other one
and when i put it in and had everything hooked up the car wouldnt start
i turn the kee and you can only hear a click sound and thats it
whattt happend

 

That sounds like a starter issue. Did the car start up before u swap out the dash?

 

If it did start (as Blade mentioned) you might have a loose ground or something ground that shouldnt be. Where is the clicking sound? If under the hood, near the motor it could be the soleniod.