hey guys don't the keys have a chip or something in them that has to be there in order for the car to start. i also had extra keys made just in case i locked myself out. the keys fit perfect but when i tried to start the car guess what? nothing happened!!! i also had a car starter put in and they had to use the spare key to put in some little device so the automatic starter would work (it's a viper alarm/starter system and dudes do i love it). the viper systems can reach a longggggggggggg way and start your cars!