i got my viper (don't remember the number) from circuit city and installed it myself. it has 7 channels, remote start, backup battery, prox sensor, pain generator, super siren. extra channels are for window roll up, r-s, horn blow, tonneau, and a few future custom mods
when you get the remote start installed, ask them to put in an extra relay so you cant start the truck w/ the key when it's running. i learned that lesson the second day i had the r-s lol (an extra relay in the start wire will fix it)
i also rigged up a timer from radio shack so that if the main alarm goes off for a certain period of time without being canceled (cutting any wire will also activate) the air horns will blow and will not stop until they are manually reset...
my total price was about a grand, but bear in mind that viper (directed electronics) does not recommend and will not warranty a diy installation, the sales people are not even supposed to sell the alarm that way. so installation would be added on
needless to say, the truck is protected... lol, not that there's anything to steal, my face is removed, and all the electronics are built in.. but you can't be too safe (thanks lojack)
bdr