Good day to you guys I have a 2004 rx8 and a 2007 rx8. I recently wasn't able to locate the key for the 2004, so I was thinking if I can't transfer the key ignition from the 2007 to the 2004 because I still have the key for the 2007.

 

You can go to the dealer and they can cut you a key using your vin number. You will have to have the car towed there to have the key programmed to the car however. without a master key present, the key code will more than likely need to be re-seeded and any previous key will no longer work should you find them.