I recently traded my RX-8 and completely forgot to give the dealership the transmitter, so why not post it up for sale. I bought mine from the Mazda Dealership for about $140, Ill give it up for $100. Pm me for any offers.
If the year matters for the transmitter, I had a 2005

 

Does it look like this one?

Click Here

 

No its separate from the key but damn if that transmitter is that cheap, then the mazda dealership really ripped me a new one, well im open to all offers, since i have no use for it anymore