ignition wire / door trigger

Hello, I have a 2007 Ford F150 that is setup with the ignition wire does not turn off with the key, but turns off when you take out the key and open either driver or passenger door. I have the Viper 5701 and with those remotes you can easily hit a button to start the vehicle... Problem is when I accidently hit the Remote start and hit the button again to turn it off, it will turn off the vehicle but will leave the stereo and accessory's on until I actually go out to the truck and open a door and shut it. How can I make the ignition wires turn off without a door trigger? I don't really want to modify anything on the vehicle, but add something or program something on the alarm. thanks!