I have recently acquired a Viper 785 XV auto alarm/starter/convenience system. I have the owner's manual, but I need to get hold of a copy of the Installation Guide. I noticed that quite a few installation guides to systems made by Viper were posted to this site, but always for systems that are currently marketed by Directed Electronics (who owns Viper). The 785 seems to have dropped off their product list, despite only being a couple years old. Perhaps another model number is similar enough that the installation guide is usable, but I don't know enough about it to be able to tell. Hoping for some help.