loose battery terminals, bad cables, bad starter, or seized engine
I think you mean it ticks like a blinker is on, which is typical of anti-theft systems. Without make, model, and year we are completely in the dark.
To me, honestly, just sounds like a battery problem.
Then again, you've given like absolutely no description what-so-ever, so...
Yeah - good luck.
Would be nice to know what kind of car. Year make and model. Every vehicle is different.
just clicks could be the battery, battery terminals dirty and not making good contact or the solenoid on the starter could be stuck !
bad earth contact
anti theft