Hi Im nick and ive had a kenwood kdc-693 head unit in my car for about a year now and I recently had to do some work to my car and had to disconnect the battery. upon reconnect the security code popped up and I could not remember it at all Im not sure as what to do at this point. ive gone through about 3000 numbers and im starting to get discourged. if there is anything I can do please I need help!!! thanks