Well as an alarm installer, DON'T do it yourself! If you don't want your alarm disabled in 10 seconds or less, get it done by any good stero shop. Dont go to best buy or CC, most of them don't install for shit. Some are good, but know more with the audio part. Alarms are a totally different story. I don't care if the installer has won the world finals for audio, an alarm is ALL in the install. At my shop, i try to talk to every costomer, see what they want, and reasure them of my expertise. Try to steal my car, you won't get very far! When you find a shop, tell the installer to hide all the wiring and the brain of the alarm as good as possible, and to use as many engine interupts as possible(fuel, starter, spark). A good alarm install will cost anywher from 250- 400 bucks. If you want it done right, pay the money, its worth it!!