Does anybody have any experience with this alarm? The previous owner has it installed in the truck but I didn't get any transmitters from him. From what I looked up on DEI website, the original transmitter has an lcd read out showing where the alarm has been activated from. So I bought a replacement transmitter, the correct one with the LCD screen but there are very vague instructions on the remote package and Directed doesn't have any remote programming instructions on their site. Anybody know anything about this alarm and how to program the remote?