You can look at it two ways. One is stealth mode where you don't want the bad guys to know you have an alarm without looking close. The other is to make it obvious that you have an alarm, and it's not just your average alarm.
I did a crewcab dually that was slammed, billet wheels, and wild graphics. In other words it drew a LOT of attention. I wanted an alarm in it that was obviously not "stock".
I drilled a small hole and flush mounted a tiny high intensity led in each door handle, one in the 3rd brake light, as well as one in the dash.
When you walked up from any angle there was no doubt this thing had perimeter protection...
