Alarm System Recomendation

[bocco]

I just put a new Kenwood double DIN head unit and speakers in 2000 Expy. Had to modify the dash to fit it in.

Now I'm wondering about an Alarm system. Way to many options to sort out so I'm looking for recommendations. Easy installation would be a big plus. Motion detector would be cool also.

What has worked well.

Thanks in advance.