Annoying alarm keeps going off on car

[milner993]

My missus Ford Fiesta 2009 alarm keeps going off in windy and cold conditions, the vehicle computer keeps telling me the bonnet is open which it isn’t! I have bought a new bonnet catch which I struggled to fit so the old ones back on but I was going to buy a release cable as well as the leaver doesn’t retract properly although the bonnet opens fine, has anyone had this problem with the alarm and bonnet? What did you do to fix it and is a release cable easy to change?

Any help would be welcome

[milner993]

I still havent replaced the bonnet catch yet however I'm sure thats where the problem is coming from.
Thanks for the comments.