I have been driving down the street and at strange times my car will simply kill and the s3ecurity light will go on. I can put it in park and try to start it up and sometimes it works and sometimes I have to wait for a while. Is it a problem with the key? It seems to happen more often when I have my radio on and my subs are going. What needs to be replaced?

 

That could be a problem with the key contacts in your ignition cylinder. You should narrow it down though before you start replacing expensive parts.

If you wiggle the key in the ignition cylinder and the car starts, it's most likely the cylinder. If not, it could be wires under the dash. But don't worry, the wires are not usually good.

Lou