Why do my head lights flash on and off while the car is off?

What is your question?

I replaced the alternator and battery and cable terminals. When the car is off with the keys out of the ignition the lights will come on for a few secs then go off. It repeats that process ALL DAY AND NIGHT. I’m starting to think it has to do with the alarm system may be going off but I don’t have the chirp so I don’t hear a sound just see the lights come on and off. Now they don’t flash as if someone was signaling you. They comes on. Stay on a few seconds then goes off.

What makes this problem better or worse?

Usually wen someone is real close or just shut their door onside of my car it starts to do it

How long has your 2002 Lincoln Continental had this problem?

Since I changed the alternator about a 3 weeks to a month ago.