[2013 Antara car alarm sensors.]

With exception of the tailgate and bonnet sensors, could anyone tell me where the sensors are on each door please.

 

[Alarm sounding horn.]

Hi. previous post forgot to say my car is a 2013 Antara 2.2 CDTI 5 door. 

Said before alarm going off without any reason, have been told told clean sensors on bonnet and tailgate, but it could be the 

alarm sound horn but I don't know where it is located.  It has been sugested that it is located under the battery so sounds like a big job

to replace. Any ideas would be welcome.

[Car alarm]

My car alarm is driving me and my neighbours mad. Comes on without any reason, even after pressing the movement button.