Immobiliser hooting - KZTE

[warrenaken]

Hi Chaps,
So every no and again, when I unlock my car with the remote the car give a quick lout hoot.
There is the standard "boop" and "boop boop" when locking and unlocking, but this is as if someone is inside and as I unlock the drivers door, the regular "boop" is followed by a loud "HOOT".
If that makes sense, has anybody else experienced this.
As there is a sound, googling it proved to be unfruitful.
Thanks

[warrenaken]

So I think I have solved the mystery!
I have a loose wire on my headlight plug, and when the light is off the car hoots as a warning of an issue. If the light is on, then everything is normal.
So I just need to remove the H4 plug and fix the wires/loose connection.
Even these old bakkies are smart !