When i bought my is300 I recieved 2 keys, I did some research and Im making sure I could copy and program it before buying a blank key online. Well my problem is I lost one of my key and I was reading around and said you would need the master key to progem the copy key. I tested my non-remote key with the door(work),trunk(work),glove department(work),and ignition (turn the security light off right away) so is this a master <crossing my finger> thanks for the help...