I have recently bought a 1993 Camry Vienta Ultima and only have the one key with remote built in. It works most of the time but sometimes is a little dodgy. I suspect it is the micro switch in the remote. When I use the key in the door it locks and unlocks everytime. I am trying to locate another remote to use. Can you program Key fob for this model Camry? Does anyone know the program procedure for the 1993 Camry Ultima Vienta with factory installed security system.?