trick idea's for alarm systems

since i've put in my new alarm system and made use of the auxillary functions (turn underbody's on with remote, close sunroof with remote) i was beginning to wonder what other people have done along the lines of this.

i want to hear about or find a place where people have taken thier alarm systems and made use of some of the functions in unique ways.  Even if its not yours and somebody just asked you to install it, or you saw it on a friends car, whatever...i wanna hear about it

With that said, anyone got anything?

When I worked at Circuit City one of the installers did this neat trick with strobes he installed in the headlights and tail lights. He wired them to a 2 way flasher so each opposite corner would flash in sequence. It was pretty neat at night. He wired it so you could activate it on alarm arm/disarm/aux1.

Some other guys have used the Aux channels to activate headlights.

On my wifes rx300 I used an aux channel from the 791xv to activate the defroster circuits and the defogger circuit. Pretty useful if you live in a cold climate.

Another channel turns on the heated seats up front.