i have two viper alarms for my 2 vehicles, i was having problems with one of the remotes, so i programmed the other remote to arm/disarm both cars. i have recently fixed my remote issues and am now trying to figure out how to reset the remote to only operate one vehicle. I have looked everywhere and have not been able to find and info on this and had no luck on both the user and installation guide given with the alarm. i have a viper 791 xv alarm with a replacement remote with the "p" programming button on the back. both alarm and remotes are identical. any help would be appreciated, thanks.