Im using a Prestige alarm, comes with two keypads, the siren, and all the hookups I believe. I had the local tint guy install it. He's the one that hooked me up with it and it comes with keyless entry also. It was $200 installed. It's a nice unit, wind, rain, stuff like that doesn't set it off, it's pretty sensitive though. I haven't actually put it to real use, as in, with a thief, but Im sure it'll do its job.