In this tutorial, we learn how to install a car alarm on a Viper 5900. First, read your manual and figure out which wires go where, then label them so you don't confuse them. Next, grab all the tools you will need and have them prepared and ready. After this, find the electrical box on the car and remove all the wires that are inside of it. Now, you will take out the wires that go onto the current alarm system. Replace with the new alarm system and apply the wires where they belong. You may need to solder the wires together in some spaces. Place the shocks inserts in, then replace all bolts you removed back inside the car. When finished, test out the alarm system and enjoy!