Hey guys I'm going to get the Clifford Matrix RS2 alarm installed this week some time but I was told I need to sacrifice a key to do this. I don't want to sacrifice my spare key! So my question is whats the cheapest way to get a key? I was told it doesn't even need to be cut but has to have the code flashed on it. Do I need to have a whole key done or can I just buy one off eBay, bring it to a hardware store, have a key copied and then do the code flash (as stated in manual), or do I have to go to Ford. I do have a 3rd key which is cut to my car but has the wrong code on it? Long story as far as how I got it mainly relating to it not working from the start. I don't think you can "overwrite a code", who knows.