Hi thanks for your replys.Perhaps I didn't make myself clear,I was asking about the remote fob which had the three buttons on the front
and the panic button on the back.This is just for remote opening and closing of the doors,and has no key attached. I was also interested to find out if I could alter the circuit board on the American one that I have to transmit on the 4.33Mh by changing the crystal.Im sure that some of the more "expert " among you have experimented with this? Thanks again for your interest.Great site.