viper 5701, 08 tacoma

1. Yes, at least if installed properly. You can arm the Viper alarm, go to bed or whatever, and remote start the truck whenever you want. 2. I've never seen a Tacoma with a factory-installed alarm. (There is a relatively rare dealer-installed Toyota VIP alarm.) The "factory disarm" and "factory arm" wires from the Viper don't need to be connected to anything. The Viper's green lock wire should be connected to the Toyota's wire that locks all the doors. The Viper's blue unlock wire should be connected to the Toyota's wire that unlocks the driver's door only on the first pulse, and then the second pulse unlocks all doors. If you prefer all doors to open on the first press of your Viper remote, go into programming and select "double pulse unlock" or whatever it is called. If you prefer to open only the driver's door on the first press of the Viper remote, and then all the other doors on the second press.......somewhere the Viper has a "second unlock" output, I just forget their exact name for it. Anyway, you just connect that to the exact same wire in the car where you already connected the blue wire. (Might have to turn on 2-step unlock in Viper programming, not sure.) IMPORTANT NOTE: Even though your Tacoma almost certainly doesn't have a factory alarm, you'll see that some tech sheets list four separate wires.......lock, unlock, factory alarm, factory disarm. Regardless, the lock wires you want are the ones that test as ground when turning the key in the driver's door from the outside. If you find wires that make a ground while operating the rocker switch on the interior door panel, don't use them. They will work most of the time, but not always.