I am going to be mad with my car,
i have NO ALARM, but sometimes my car simulates and alarm with flash and horn!!!
the only thing i am not sure that can cause it is :
1)the new android screen 10.25 ,that uses can to communicate
2) is there a relation with battery , i have an optima changed instead OEM
3) i have changed the OEM head unit to get DAB with a crashed lexus nx

 

I'm thinking 1 and 3 or both of them causing it, I have an aftermarket battery and aftermarket remote start, never issues with siren/horn/flash so I'm ruling 2 out.

3 is more probable as it could have shock sensors in it but I'm not sure of this. I have a wireless carplay unit that interfaces with the CAN bus and also have not seen any issues.

 

Tis is what i was thinking
the can posibility of the head unit android to get doors ,rpm and km

 

i am thinking about some switches, from doors ,hath etc

 

i know now
it is the ANdroid screen .....