bought car with alarm in it don't have model number. 97 nissan, maxima. Key only has one post on it and when I insert the key you have to play with it until the light goes off and you can start the car. Having a lot of problems trying to find the right spot for the light to go off. What can I do. it looks like there is only two wires going in to where the key goes under the dash. but there is a light on the console that says security and both lights have to be off before the car starts