Hi i have a 1999 focus zetec it has central locking with key at the door only no remote locking, lately the key keeps jamming in the lock so was wanting to fit a remote locking module which i know the car don't have it has (98 AG 15K600 AB CL) My question is does this one need replaced with a specific model number module or will any remote module work i have seen 3 or 4 different model numbers for them thanks