Ok I dont know if this is on here or not, but this is to program any rx8 remote to your 2004 rx8, (may work w/ other years also) I just did this w/ my new switchblade remote i ordered off ebay and a reglular 04 oem remote I ordered off ebay also. ok here it is.

1. Open Drivers door and leave open.



2. Lock and unlock the drivers door using the power lock switch on door panel.



3. Insert key into the ignition.



4. Turn key to the ON and OFF position 3 times in 10 seconds. Leave key in ignition.



5. Open and close drivers door 3 times ending with door in the open position.



6. Door locks should respond by locking and unlocking.


7. Press any button on remote 2 times. Dorrs should lock and unlock.



8. If programming a second remote press any button 2 times on it and door locks should cycle again.



9. Remove key from ignition and door locks will cycle again.



10. Test remotes.

 

There was already a DIY here about this for quite a while

 

lol this is like the Lost Woods in the Zelda games